./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_length_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:43:43,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:43:43,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:43:43,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:43:43,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:43:43,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:43:43,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:43:43,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:43:43,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:43:43,361 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:43:43,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:43:43,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:43:43,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:43:43,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:43:43,364 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:43:43,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:43:43,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:43:43,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:43:43,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:43:43,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:43:43,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:43:43,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:43:43,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:43:43,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:43:43,370 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:43:43,370 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:43:43,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:43:43,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:43:43,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:43:43,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:43:43,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:43:43,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:43:43,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:43:43,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:43:43,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:43:43,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:43:43,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:43:43,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:43:43,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:43:43,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c30c0965987318f01d5184a150d60c3184a0b961eb98f92329641a56cc773300 [2024-11-10 10:43:43,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:43:43,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:43:43,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:43:43,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:43:43,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:43:43,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2024-11-10 10:43:45,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:43:45,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:43:45,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_length_harness_negated.i [2024-11-10 10:43:45,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faecf0b40/94ab81d2806c4c2e898573f8e06e563a/FLAG8ec56fae2 [2024-11-10 10:43:45,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faecf0b40/94ab81d2806c4c2e898573f8e06e563a [2024-11-10 10:43:45,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:43:45,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:43:45,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:43:45,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:43:45,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:43:45,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:45" (1/1) ... [2024-11-10 10:43:45,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73403978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:45, skipping insertion in model container [2024-11-10 10:43:45,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:43:45" (1/1) ... [2024-11-10 10:43:46,080 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:43:46,284 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_length_harness_negated.i[4495,4508] [2024-11-10 10:43:46,289 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_length_harness_negated.i[4555,4568] [2024-11-10 10:43:46,887 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,888 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,888 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,889 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,889 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,904 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,904 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,909 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,909 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,911 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,912 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,912 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:46,914 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,285 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,295 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:43:47,374 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:43:47,385 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_length_harness_negated.i[4495,4508] [2024-11-10 10:43:47,389 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_length_harness_negated.i[4555,4568] [2024-11-10 10:43:47,436 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,437 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,437 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,437 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,438 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,442 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,443 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,444 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,444 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,445 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,445 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,445 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,446 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,590 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,594 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:43:47,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7715-7726] [2024-11-10 10:43:47,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:43:47,787 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:43:47,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47 WrapperNode [2024-11-10 10:43:47,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:43:47,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:43:47,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:43:47,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:43:47,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:47,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:47,951 INFO L138 Inliner]: procedures = 679, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 592 [2024-11-10 10:43:47,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:43:47,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:43:47,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:43:47,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:43:47,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:47,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:47,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,043 INFO L175 MemorySlicer]: Split 303 memory accesses to 6 slices as follows [2, 238, 3, 47, 7, 6]. 79 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 1, 10, 5, 0]. The 238 writes are split as follows [0, 232, 1, 3, 0, 2]. [2024-11-10 10:43:48,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,072 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:43:48,106 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:43:48,106 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:43:48,107 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:43:48,108 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (1/1) ... [2024-11-10 10:43:48,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:43:48,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:43:48,133 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) [2024-11-10 10:43:48,139 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 [2024-11-10 10:43:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:43:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-10 10:43:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-10 10:43:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-10 10:43:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-10 10:43:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:43:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:43:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:43:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:43:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:43:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:43:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:43:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:43:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:43:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:43:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:43:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:43:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:43:48,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:43:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:43:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:43:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:43:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:43:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:43:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:43:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:43:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:43:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:43:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:43:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:43:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-10 10:43:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:43:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-10 10:43:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:43:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:43:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:43:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:43:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:43:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:43:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:43:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:43:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:43:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:43:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-10 10:43:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-10 10:43:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-10 10:43:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-10 10:43:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:43:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:43:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:43:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:43:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:43:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:43:48,443 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:43:48,446 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:43:48,483 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-10 10:43:48,536 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-10 10:43:48,645 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2024-11-10 10:43:48,651 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:43:54,236 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:43:54,265 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-10 10:43:54,265 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:43:54,275 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:43:54,276 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:43:54,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:43:54 BoogieIcfgContainer [2024-11-10 10:43:54,276 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:43:54,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:43:54,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:43:54,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:43:54,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:43:45" (1/3) ... [2024-11-10 10:43:54,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f7e7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:54, skipping insertion in model container [2024-11-10 10:43:54,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:43:47" (2/3) ... [2024-11-10 10:43:54,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f7e7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:43:54, skipping insertion in model container [2024-11-10 10:43:54,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:43:54" (3/3) ... [2024-11-10 10:43:54,283 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_length_harness_negated.i [2024-11-10 10:43:54,295 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:43:54,296 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:43:54,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:43:54,368 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;@7a786014, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:43:54,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:43:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 80 states have internal predecessors, (95), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-10 10:43:54,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 10:43:54,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:43:54,395 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-10 10:43:54,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:43:54,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:43:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1993413781, now seen corresponding path program 1 times [2024-11-10 10:43:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:43:54,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069252026] [2024-11-10 10:43:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:54,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:00,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:00,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 10:44:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:44:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:44:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 10:44:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 10:44:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 10:44:01,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069252026] [2024-11-10 10:44:01,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069252026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:01,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:44:01,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:44:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387756937] [2024-11-10 10:44:01,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:01,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:44:01,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:44:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:44:01,302 INFO L87 Difference]: Start difference. First operand has 124 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 80 states have internal predecessors, (95), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-10 10:44:05,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:44:09,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:44:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:13,752 INFO L93 Difference]: Finished difference Result 251 states and 340 transitions. [2024-11-10 10:44:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:44:13,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2024-11-10 10:44:13,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:13,765 INFO L225 Difference]: With dead ends: 251 [2024-11-10 10:44:13,766 INFO L226 Difference]: Without dead ends: 125 [2024-11-10 10:44:13,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:44:13,771 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 89 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:13,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2024-11-10 10:44:13,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-10 10:44:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 114. [2024-11-10 10:44:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 72 states have internal predecessors, (82), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 10:44:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-11-10 10:44:13,810 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 71 [2024-11-10 10:44:13,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:13,810 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-11-10 10:44:13,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-10 10:44:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-11-10 10:44:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-10 10:44:13,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:13,813 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-10 10:44:13,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:44:13,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:13,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:13,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1224253304, now seen corresponding path program 1 times [2024-11-10 10:44:13,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:13,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218182078] [2024-11-10 10:44:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:19,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:19,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:19,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 10:44:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:44:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:44:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-10 10:44:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 10:44:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-10 10:44:20,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218182078] [2024-11-10 10:44:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218182078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:44:20,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137186426] [2024-11-10 10:44:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:20,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:44:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:44:20,711 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) [2024-11-10 10:44:20,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:44:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:25,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 4081 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:44:25,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:44:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-10 10:44:26,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:44:26,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137186426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:26,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:44:26,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-10 10:44:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788309041] [2024-11-10 10:44:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:26,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:44:26,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:44:26,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-10 10:44:26,556 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-10 10:44:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:29,094 INFO L93 Difference]: Finished difference Result 193 states and 240 transitions. [2024-11-10 10:44:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:44:29,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2024-11-10 10:44:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:29,097 INFO L225 Difference]: With dead ends: 193 [2024-11-10 10:44:29,097 INFO L226 Difference]: Without dead ends: 116 [2024-11-10 10:44:29,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:44:29,100 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:29,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 419 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-10 10:44:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-10 10:44:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-10 10:44:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 74 states have internal predecessors, (83), 30 states have call successors, (30), 13 states have call predecessors, (30), 13 states have return successors, (30), 28 states have call predecessors, (30), 28 states have call successors, (30) [2024-11-10 10:44:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2024-11-10 10:44:29,118 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 71 [2024-11-10 10:44:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:29,119 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2024-11-10 10:44:29,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-10 10:44:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2024-11-10 10:44:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-10 10:44:29,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:29,122 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2024-11-10 10:44:29,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 10:44:29,326 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 [2024-11-10 10:44:29,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:29,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1856883318, now seen corresponding path program 1 times [2024-11-10 10:44:29,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:29,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472391405] [2024-11-10 10:44:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:29,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:44:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:44:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:44:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:44:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:36,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:44:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:44:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:44:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 10:44:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:44:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:44:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 10:44:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 10:44:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-10 10:44:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:44:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472391405] [2024-11-10 10:44:37,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472391405] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:44:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124476029] [2024-11-10 10:44:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:37,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:44:37,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:44:37,703 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) [2024-11-10 10:44:37,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 10:44:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:44:42,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 10:44:42,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:44:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 10:44:45,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:44:45,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124476029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:44:45,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:44:45,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-10 10:44:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108684662] [2024-11-10 10:44:45,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:44:45,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:44:45,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:44:45,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:44:45,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-10 10:44:45,081 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-10 10:44:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:44:48,602 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2024-11-10 10:44:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:44:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 86 [2024-11-10 10:44:48,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:44:48,605 INFO L225 Difference]: With dead ends: 182 [2024-11-10 10:44:48,605 INFO L226 Difference]: Without dead ends: 114 [2024-11-10 10:44:48,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-10 10:44:48,610 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 151 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-10 10:44:48,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 598 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-10 10:44:48,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-10 10:44:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-10 10:44:48,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 72 states have internal predecessors, (81), 30 states have call successors, (30), 13 states have call predecessors, (30), 12 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 10:44:48,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-10 10:44:48,625 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 86 [2024-11-10 10:44:48,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:44:48,625 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-10 10:44:48,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-10 10:44:48,626 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-10 10:44:48,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-10 10:44:48,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:44:48,628 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-10 10:44:48,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 10:44:48,828 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 [2024-11-10 10:44:48,829 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:44:48,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:44:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1637822364, now seen corresponding path program 1 times [2024-11-10 10:44:48,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:44:48,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51602183] [2024-11-10 10:44:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:44:48,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:44:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:45:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:02,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:45:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:02,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:45:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:45:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:45:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 10:45:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:45:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:45:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-10 10:45:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:03,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:45:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:45:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:45:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:45:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-10 10:45:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-10 10:45:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:45:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:45:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:45:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-10 10:45:04,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:45:04,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51602183] [2024-11-10 10:45:04,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51602183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:45:04,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206632323] [2024-11-10 10:45:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:45:04,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:45:04,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:45:04,739 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) [2024-11-10 10:45:04,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process