./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_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_pop_front_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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:57:54,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:57:54,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:57:54,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:57:54,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:57:54,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:57:54,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:57:54,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:57:54,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:57:54,435 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:57:54,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:57:54,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:57:54,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:57:54,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:57:54,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:57:54,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:57:54,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:57:54,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:57:54,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:57:54,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:57:54,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:57:54,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:57:54,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:57:54,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:57:54,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:57:54,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:57:54,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:57:54,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:54,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:57:54,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:57:54,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:57:54,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:57:54,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:57:54,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:57:54,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2024-11-09 02:57:54,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:57:54,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:57:54,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:57:54,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:57:54,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:57:54,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-09 02:57:55,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:57:56,174 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:57:56,175 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-09 02:57:56,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1ec3e7a/ecf0477ac16d4cada60a69a69430603f/FLAG61cbd664c [2024-11-09 02:57:56,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1ec3e7a/ecf0477ac16d4cada60a69a69430603f [2024-11-09 02:57:56,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:57:56,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:57:56,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:56,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:57:56,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:57:56,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:56" (1/1) ... [2024-11-09 02:57:56,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c01ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:56, skipping insertion in model container [2024-11-09 02:57:56,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:57:56" (1/1) ... [2024-11-09 02:57:56,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:57:56,694 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_pop_front_harness.i[4498,4511] [2024-11-09 02:57:56,701 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_pop_front_harness.i[4558,4571] [2024-11-09 02:57:57,222 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,223 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,224 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,232 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,235 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,236 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,238 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,239 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,240 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,240 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,243 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,542 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,547 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:57,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:57:57,613 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_pop_front_harness.i[4498,4511] [2024-11-09 02:57:57,614 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_pop_front_harness.i[4558,4571] [2024-11-09 02:57:57,672 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,672 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,672 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,673 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,677 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,688 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,689 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,689 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,690 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,691 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,691 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,691 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,747 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,751 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:57:57,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] [2024-11-09 02:57:57,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:57:58,004 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:57:58,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58 WrapperNode [2024-11-09 02:57:58,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:57:58,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:58,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:57:58,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:57:58,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,136 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 687 [2024-11-09 02:57:58,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:57:58,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:57:58,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:57:58,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:57:58,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,223 INFO L175 MemorySlicer]: Split 323 memory accesses to 6 slices as follows [2, 238, 11, 63, 3, 6]. 74 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 10, 1, 0]. The 240 writes are split as follows [0, 232, 0, 5, 1, 2]. [2024-11-09 02:57:58,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:57:58,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:57:58,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:57:58,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:57:58,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (1/1) ... [2024-11-09 02:57:58,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:57:58,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:57:58,319 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 02:57:58,322 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 02:57:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-09 02:57:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-09 02:57:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 02:57:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:57:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 02:57:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 02:57:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:57:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:57:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:57:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:57:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:57:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 02:57:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 02:57:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:57:58,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-09 02:57:58,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-09 02:57:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:57:58,356 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:57:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 02:57:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:57:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:57:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-09 02:57:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2024-11-09 02:57:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:57:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:57:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:57:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:57:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:57:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 02:57:58,607 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:57:58,609 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:58:04,410 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-09 02:58:04,410 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:58:04,423 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:58:04,423 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:58:04,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:58:04 BoogieIcfgContainer [2024-11-09 02:58:04,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:58:04,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:58:04,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:58:04,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:58:04,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:57:56" (1/3) ... [2024-11-09 02:58:04,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1789a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:58:04, skipping insertion in model container [2024-11-09 02:58:04,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:57:58" (2/3) ... [2024-11-09 02:58:04,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1789a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:58:04, skipping insertion in model container [2024-11-09 02:58:04,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:58:04" (3/3) ... [2024-11-09 02:58:04,430 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2024-11-09 02:58:04,442 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:58:04,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:58:04,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:58:04,502 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;@7a345dc1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:58:04,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:58:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 02:58:04,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 02:58:04,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:04,517 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:04,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:04,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1369416434, now seen corresponding path program 1 times [2024-11-09 02:58:04,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:04,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951928585] [2024-11-09 02:58:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:58:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:58:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:58:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:09,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:58:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 02:58:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 02:58:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:58:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 02:58:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 02:58:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 02:58:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 02:58:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 02:58:10,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:10,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951928585] [2024-11-09 02:58:10,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951928585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:58:10,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:58:10,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:58:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801163538] [2024-11-09 02:58:10,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:58:10,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:58:10,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:10,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:58:10,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:58:10,128 INFO L87 Difference]: Start difference. First operand has 185 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 02:58:14,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:58:18,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:58:24,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:24,602 INFO L93 Difference]: Finished difference Result 431 states and 667 transitions. [2024-11-09 02:58:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:58:24,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-09 02:58:24,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:24,614 INFO L225 Difference]: With dead ends: 431 [2024-11-09 02:58:24,614 INFO L226 Difference]: Without dead ends: 248 [2024-11-09 02:58:24,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:58:24,621 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 154 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 210 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:24,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 282 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 306 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 02:58:24,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-09 02:58:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 180. [2024-11-09 02:58:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 107 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 02:58:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2024-11-09 02:58:24,698 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 84 [2024-11-09 02:58:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:24,699 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2024-11-09 02:58:24,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 02:58:24,700 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2024-11-09 02:58:24,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 02:58:24,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:24,703 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:24,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:58:24,704 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:24,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash -293931922, now seen corresponding path program 1 times [2024-11-09 02:58:24,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:24,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532512169] [2024-11-09 02:58:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:29,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:29,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:58:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:29,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:58:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:29,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:58:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:58:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 02:58:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 02:58:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:58:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 02:58:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 02:58:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 02:58:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 02:58:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 02:58:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532512169] [2024-11-09 02:58:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532512169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:58:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261200504] [2024-11-09 02:58:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:30,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:58:30,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:58:30,674 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 02:58:30,675 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 02:58:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:35,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 4159 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 02:58:35,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:58:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 02:58:36,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:58:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261200504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:58:36,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:58:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-09 02:58:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489811908] [2024-11-09 02:58:36,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:58:36,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:58:36,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:36,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:58:36,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-09 02:58:36,449 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 02:58:39,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:39,543 INFO L93 Difference]: Finished difference Result 325 states and 446 transitions. [2024-11-09 02:58:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:58:39,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2024-11-09 02:58:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:39,550 INFO L225 Difference]: With dead ends: 325 [2024-11-09 02:58:39,550 INFO L226 Difference]: Without dead ends: 182 [2024-11-09 02:58:39,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:58:39,551 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 253 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:39,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 722 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 02:58:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-09 02:58:39,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-09 02:58:39,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2024-11-09 02:58:39,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 250 transitions. [2024-11-09 02:58:39,575 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 250 transitions. Word has length 84 [2024-11-09 02:58:39,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:39,575 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 250 transitions. [2024-11-09 02:58:39,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 02:58:39,576 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2024-11-09 02:58:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 02:58:39,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:39,581 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:39,604 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 02:58:39,781 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 [2024-11-09 02:58:39,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:39,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:39,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2116490439, now seen corresponding path program 1 times [2024-11-09 02:58:39,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:39,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346152451] [2024-11-09 02:58:39,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:39,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:58:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:44,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:58:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:58:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:58:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:58:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:58:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:58:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:58:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:58:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:45,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:58:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 02:58:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 02:58:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 02:58:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 02:58:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 02:58:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 02:58:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:58:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346152451] [2024-11-09 02:58:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346152451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:58:46,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471483916] [2024-11-09 02:58:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:46,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:58:46,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:58:46,225 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 02:58:46,226 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 02:58:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:58:50,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 4286 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 02:58:50,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:58:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 02:58:52,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:58:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471483916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:58:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:58:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-09 02:58:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501630210] [2024-11-09 02:58:52,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:58:52,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:58:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:58:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:58:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-09 02:58:52,788 INFO L87 Difference]: Start difference. First operand 182 states and 250 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 02:58:58,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:58:58,431 INFO L93 Difference]: Finished difference Result 317 states and 440 transitions. [2024-11-09 02:58:58,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:58:58,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2024-11-09 02:58:58,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:58:58,434 INFO L225 Difference]: With dead ends: 317 [2024-11-09 02:58:58,434 INFO L226 Difference]: Without dead ends: 182 [2024-11-09 02:58:58,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-09 02:58:58,436 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 273 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 02:58:58,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 975 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 02:58:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-09 02:58:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-09 02:58:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 107 states have (on average 1.1869158878504673) internal successors, (127), 109 states have internal predecessors, (127), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-09 02:58:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2024-11-09 02:58:58,449 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 99 [2024-11-09 02:58:58,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:58:58,450 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2024-11-09 02:58:58,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-09 02:58:58,450 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2024-11-09 02:58:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 02:58:58,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:58:58,452 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2024-11-09 02:58:58,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 02:58:58,652 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 [2024-11-09 02:58:58,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:58:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:58:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1678054398, now seen corresponding path program 2 times [2024-11-09 02:58:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:58:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469915125] [2024-11-09 02:58:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:58:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:59:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:03,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:59:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:03,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:59:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 02:59:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 02:59:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 02:59:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 02:59:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:59:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:04,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:59:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 02:59:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 02:59:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:59:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:59:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 02:59:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 02:59:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 02:59:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 02:59:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 02:59:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:59:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 02:59:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:59:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469915125] [2024-11-09 02:59:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469915125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:59:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603314906] [2024-11-09 02:59:05,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 02:59:05,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:59:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:59:05,659 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) [2024-11-09 02:59:05,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process