./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_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_clean_up_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 5ba879a31f48d1f1f7d1dc7f928910bfb7ed0629fadb04ed483f94e60bfd5ef0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:55:41,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:55:41,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 02:55:41,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:55:41,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:55:41,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:55:41,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:55:41,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:55:41,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:55:41,413 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:55:41,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:55:41,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:55:41,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:55:41,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:55:41,416 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:55:41,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:55:41,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:55:41,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:55:41,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:55:41,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:55:41,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:55:41,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:55:41,419 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:55:41,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:55:41,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:55:41,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:55:41,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:55:41,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:55:41,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:55:41,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:55:41,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:55:41,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:55:41,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:55:41,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:55:41,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:55:41,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:55:41,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:55:41,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:55:41,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:55:41,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba879a31f48d1f1f7d1dc7f928910bfb7ed0629fadb04ed483f94e60bfd5ef0 [2024-11-09 02:55:41,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:55:41,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:55:41,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:55:41,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:55:41,706 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:55:41,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_harness.i [2024-11-09 02:55:43,197 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:55:43,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:55:43,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_harness.i [2024-11-09 02:55:43,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c4d5a57/0c469855edb740469ef2323226583b4f/FLAGf66275745 [2024-11-09 02:55:43,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7c4d5a57/0c469855edb740469ef2323226583b4f [2024-11-09 02:55:43,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:55:43,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:55:43,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:55:43,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:55:43,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:55:43,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:55:43" (1/1) ... [2024-11-09 02:55:43,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33dd4d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:43, skipping insertion in model container [2024-11-09 02:55:43,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:55:43" (1/1) ... [2024-11-09 02:55:43,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:55:44,140 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_clean_up_harness.i[4497,4510] [2024-11-09 02:55:44,148 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_clean_up_harness.i[4557,4570] [2024-11-09 02:55:44,848 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,851 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,852 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,853 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,869 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,875 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,876 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,878 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:44,879 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,209 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,219 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:55:45,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:55:45,347 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_clean_up_harness.i[4497,4510] [2024-11-09 02:55:45,348 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_clean_up_harness.i[4557,4570] [2024-11-09 02:55:45,473 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,474 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,483 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,483 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,484 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,498 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,499 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,523 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,527 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,532 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,533 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,534 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,534 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,609 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,615 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 02:55:45,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-09 02:55:45,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:55:45,877 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:55:45,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45 WrapperNode [2024-11-09 02:55:45,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:55:45,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:55:45,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:55:45,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:55:45,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:45,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,026 INFO L138 Inliner]: procedures = 679, calls = 1548, calls flagged for inlining = 48, calls inlined = 7, statements flattened = 576 [2024-11-09 02:55:46,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:55:46,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:55:46,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:55:46,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:55:46,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,133 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 6, 28, 3]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 5, 5, 1]. The 237 writes are split as follows [0, 232, 0, 4, 1]. [2024-11-09 02:55:46,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:55:46,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:55:46,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:55:46,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:55:46,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (1/1) ... [2024-11-09 02:55:46,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:55:46,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:55:46,258 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 02:55:46,262 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 02:55:46,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-09 02:55:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-09 02:55:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:55:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-09 02:55:46,304 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-09 02:55:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-09 02:55:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-09 02:55:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 02:55:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 02:55:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 02:55:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 02:55:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 02:55:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 02:55:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 02:55:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-09 02:55:46,307 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-09 02:55:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 02:55:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 02:55:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 02:55:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:55:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:55:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 02:55:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 02:55:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-09 02:55:46,310 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-09 02:55:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 02:55:46,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 02:55:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 02:55:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 02:55:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 02:55:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-09 02:55:46,311 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-09 02:55:46,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 02:55:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 02:55:46,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 02:55:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-09 02:55:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-09 02:55:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 02:55:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 02:55:46,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 02:55:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 02:55:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-09 02:55:46,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:55:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:55:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:55:46,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:55:46,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 02:55:46,626 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:55:46,630 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:55:53,011 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-09 02:55:53,011 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:55:53,026 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:55:53,027 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 02:55:53,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:55:53 BoogieIcfgContainer [2024-11-09 02:55:53,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:55:53,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:55:53,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:55:53,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:55:53,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:55:43" (1/3) ... [2024-11-09 02:55:53,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328009c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:55:53, skipping insertion in model container [2024-11-09 02:55:53,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:55:45" (2/3) ... [2024-11-09 02:55:53,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328009c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:55:53, skipping insertion in model container [2024-11-09 02:55:53,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:55:53" (3/3) ... [2024-11-09 02:55:53,035 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clean_up_harness.i [2024-11-09 02:55:53,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:55:53,052 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:55:53,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:55:53,138 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;@39296f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:55:53,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 02:55:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 02:55:53,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 02:55:53,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:55:53,159 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-09 02:55:53,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:55:53,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:55:53,166 INFO L85 PathProgramCache]: Analyzing trace with hash -24843130, now seen corresponding path program 1 times [2024-11-09 02:55:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:55:53,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751314221] [2024-11-09 02:55:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:55:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:55:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:58,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:55:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:58,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:55:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:58,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 02:55:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 02:55:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 02:55:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 02:55:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 02:55:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 02:55:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-09 02:55:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:55:59,349 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 02:55:59,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:55:59,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751314221] [2024-11-09 02:55:59,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751314221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:55:59,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:55:59,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:55:59,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079439133] [2024-11-09 02:55:59,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:55:59,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:55:59,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:55:59,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:55:59,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:55:59,388 INFO L87 Difference]: Start difference. First operand has 114 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 02:56:03,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:56:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:56:05,483 INFO L93 Difference]: Finished difference Result 225 states and 293 transitions. [2024-11-09 02:56:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:56:05,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-11-09 02:56:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:56:05,494 INFO L225 Difference]: With dead ends: 225 [2024-11-09 02:56:05,495 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 02:56:05,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:56:05,501 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 39 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-09 02:56:05,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 131 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2024-11-09 02:56:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 02:56:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2024-11-09 02:56:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 72 states have internal predecessors, (87), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 02:56:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2024-11-09 02:56:05,554 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 65 [2024-11-09 02:56:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:56:05,555 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2024-11-09 02:56:05,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 02:56:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2024-11-09 02:56:05,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 02:56:05,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:56:05,559 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-09 02:56:05,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:56:05,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:56:05,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:56:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1894743406, now seen corresponding path program 1 times [2024-11-09 02:56:05,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:56:05,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251623661] [2024-11-09 02:56:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:56:05,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:56:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:11,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:56:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:11,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:56:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:11,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 02:56:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:11,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 02:56:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 02:56:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 02:56:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 02:56:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-09 02:56:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 02:56:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 02:56:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 02:56:12,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:56:12,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251623661] [2024-11-09 02:56:12,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251623661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:56:12,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:56:12,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:56:12,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665032460] [2024-11-09 02:56:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:56:12,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:56:12,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:56:12,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:56:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:56:12,753 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 02:56:16,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:56:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:56:23,959 INFO L93 Difference]: Finished difference Result 187 states and 227 transitions. [2024-11-09 02:56:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:56:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2024-11-09 02:56:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:56:23,962 INFO L225 Difference]: With dead ends: 187 [2024-11-09 02:56:23,962 INFO L226 Difference]: Without dead ends: 114 [2024-11-09 02:56:23,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-09 02:56:23,965 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 129 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-09 02:56:23,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 199 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2024-11-09 02:56:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-09 02:56:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2024-11-09 02:56:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 74 states have internal predecessors, (88), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-09 02:56:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2024-11-09 02:56:23,985 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 132 transitions. Word has length 71 [2024-11-09 02:56:23,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:56:23,987 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 132 transitions. [2024-11-09 02:56:23,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 02:56:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 132 transitions. [2024-11-09 02:56:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 02:56:23,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:56:23,992 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:56:23,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:56:23,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:56:23,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:56:23,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1641735236, now seen corresponding path program 1 times [2024-11-09 02:56:23,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:56:23,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209239396] [2024-11-09 02:56:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:56:23,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:56:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:31,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:56:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:31,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:56:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:31,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 02:56:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:31,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 02:56:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 02:56:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:56:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:56:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 02:56:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:56:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 02:56:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:32,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 02:56:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:33,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 02:56:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 02:56:33,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:56:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209239396] [2024-11-09 02:56:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209239396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:56:33,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:56:33,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 02:56:33,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984474546] [2024-11-09 02:56:33,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:56:33,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:56:33,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:56:33,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:56:33,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:56:33,378 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 02:56:37,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:56:41,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 02:56:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 02:56:51,974 INFO L93 Difference]: Finished difference Result 121 states and 145 transitions. [2024-11-09 02:56:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:56:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 86 [2024-11-09 02:56:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 02:56:51,977 INFO L225 Difference]: With dead ends: 121 [2024-11-09 02:56:51,978 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 02:56:51,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:56:51,981 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 149 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 79 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-09 02:56:51,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 285 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2024-11-09 02:56:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 02:56:52,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2024-11-09 02:56:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 76 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (23), 21 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-09 02:56:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2024-11-09 02:56:52,003 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 86 [2024-11-09 02:56:52,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 02:56:52,004 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2024-11-09 02:56:52,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 02:56:52,004 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2024-11-09 02:56:52,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 02:56:52,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 02:56:52,007 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:56:52,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:56:52,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 02:56:52,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:56:52,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1085169861, now seen corresponding path program 1 times [2024-11-09 02:56:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:56:52,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153423466] [2024-11-09 02:56:52,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:56:52,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:56:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:56:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 02:56:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 02:56:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 02:56:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 02:56:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 02:56:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:58,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 02:56:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:59,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 02:56:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:59,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 02:56:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:56:59,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 02:56:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:00,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 02:57:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:00,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 02:57:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:57:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 02:57:00,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:57:00,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153423466] [2024-11-09 02:57:00,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153423466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:57:00,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328812042] [2024-11-09 02:57:00,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:57:00,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:57:00,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:57:00,053 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 02:57:00,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process