./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_clear_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 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:59:11,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:59:11,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 13:59:11,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:59:11,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:59:11,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:59:11,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:59:11,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:59:11,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:59:11,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:59:11,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:59:11,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:59:11,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:59:11,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:59:11,181 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:59:11,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:59:11,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:59:11,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:59:11,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:59:11,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:59:11,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:59:11,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:59:11,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:59:11,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:59:11,186 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:59:11,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:59:11,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:59:11,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:59:11,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:59:11,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:59:11,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:59:11,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:59:11,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:59:11,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e160fe5ab2582a9d6f5a0de6f18c7ad864793aa408f2050ff0148a78c40a3b1 [2024-11-22 13:59:11,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:59:11,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:59:11,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:59:11,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:59:11,460 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:59:11,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-22 13:59:12,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:59:13,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:59:13,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i [2024-11-22 13:59:13,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8771d7a4/efc41393ebdc40239713d24657562c38/FLAG6f7bdcfda [2024-11-22 13:59:13,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8771d7a4/efc41393ebdc40239713d24657562c38 [2024-11-22 13:59:13,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:59:13,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:59:13,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:59:13,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:59:13,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:59:13,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:13" (1/1) ... [2024-11-22 13:59:13,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4959c2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:13, skipping insertion in model container [2024-11-22 13:59:13,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:59:13" (1/1) ... [2024-11-22 13:59:13,366 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:59:13,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness_negated.i[4494,4507] [2024-11-22 13:59:13,619 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_clear_harness_negated.i[4554,4567] [2024-11-22 13:59:14,208 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,209 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,211 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,211 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,213 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,226 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,227 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,228 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,233 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,597 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:59:14,671 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:59:14,683 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_clear_harness_negated.i[4494,4507] [2024-11-22 13:59:14,687 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_clear_harness_negated.i[4554,4567] [2024-11-22 13:59:14,788 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,792 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,796 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,796 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,797 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,802 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,810 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,811 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,815 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,816 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,817 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,898 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,901 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 13:59:14,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2024-11-22 13:59:14,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:59:15,018 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:59:15,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15 WrapperNode [2024-11-22 13:59:15,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:59:15,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:59:15,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:59:15,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:59:15,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,198 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-22 13:59:15,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:59:15,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:59:15,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:59:15,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:59:15,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,292 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 238, 5, 34, 3, 9]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 6, 5, 5, 1, 5]. The 237 writes are split as follows [0, 232, 0, 4, 1, 0]. [2024-11-22 13:59:15,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:59:15,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:59:15,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:59:15,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:59:15,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (1/1) ... [2024-11-22 13:59:15,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:59:15,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:59:15,388 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) [2024-11-22 13:59:15,397 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 [2024-11-22 13:59:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 13:59:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 13:59:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 13:59:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 13:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 13:59:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 13:59:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 13:59:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 13:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 13:59:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 13:59:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 13:59:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:59:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 13:59:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 13:59:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 13:59:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-22 13:59:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 13:59:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 13:59:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 13:59:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 13:59:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 13:59:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 13:59:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 13:59:15,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 13:59:15,635 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:59:15,637 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:59:21,151 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-22 13:59:21,152 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:59:21,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:59:21,166 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 13:59:21,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:21 BoogieIcfgContainer [2024-11-22 13:59:21,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:59:21,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:59:21,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:59:21,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:59:21,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:59:13" (1/3) ... [2024-11-22 13:59:21,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da88f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:21, skipping insertion in model container [2024-11-22 13:59:21,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:59:15" (2/3) ... [2024-11-22 13:59:21,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da88f62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:59:21, skipping insertion in model container [2024-11-22 13:59:21,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:59:21" (3/3) ... [2024-11-22 13:59:21,175 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness_negated.i [2024-11-22 13:59:21,189 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:59:21,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 13:59:21,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:59:21,255 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;@4da81030, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:59:21,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 13:59:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 13:59:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 13:59:21,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:59:21,265 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-22 13:59:21,266 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:59:21,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:59:21,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1818819730, now seen corresponding path program 1 times [2024-11-22 13:59:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:59:21,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280730818] [2024-11-22 13:59:21,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:21,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:59:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:26,900 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 13:59:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:59:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280730818] [2024-11-22 13:59:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280730818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:59:26,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798502765] [2024-11-22 13:59:26,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:26,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:59:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:59:26,910 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) [2024-11-22 13:59:26,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 13:59:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:32,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 13:59:32,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:59:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 13:59:32,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:59:32,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798502765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:59:32,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:59:32,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 13:59:32,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489808455] [2024-11-22 13:59:32,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:59:32,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 13:59:32,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:59:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 13:59:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:59:32,344 INFO L87 Difference]: Start difference. First operand has 101 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 13:59:32,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:59:32,365 INFO L93 Difference]: Finished difference Result 195 states and 256 transitions. [2024-11-22 13:59:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 13:59:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-22 13:59:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:59:32,372 INFO L225 Difference]: With dead ends: 195 [2024-11-22 13:59:32,373 INFO L226 Difference]: Without dead ends: 96 [2024-11-22 13:59:32,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 13:59:32,378 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 13:59:32,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 13:59:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-22 13:59:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-22 13:59:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 60 states have internal predecessors, (69), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 13:59:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-22 13:59:32,411 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-22 13:59:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:59:32,411 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-22 13:59:32,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 13:59:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-22 13:59:32,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 13:59:32,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:59:32,414 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-22 13:59:32,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 13:59:32,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 13:59:32,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:59:32,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:59:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1417756758, now seen corresponding path program 1 times [2024-11-22 13:59:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:59:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920903824] [2024-11-22 13:59:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:59:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 13:59:38,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:59:38,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920903824] [2024-11-22 13:59:38,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920903824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:59:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880012851] [2024-11-22 13:59:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:38,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:59:38,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:59:38,031 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) [2024-11-22 13:59:38,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 13:59:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:43,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 13:59:43,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:59:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 13:59:44,264 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:59:44,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880012851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:59:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:59:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 13:59:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553040288] [2024-11-22 13:59:44,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:59:44,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:59:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:59:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:59:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:59:44,267 INFO L87 Difference]: Start difference. First operand 96 states and 118 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 13:59:45,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 13:59:45,909 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-22 13:59:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:59:45,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-11-22 13:59:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 13:59:45,912 INFO L225 Difference]: With dead ends: 160 [2024-11-22 13:59:45,912 INFO L226 Difference]: Without dead ends: 98 [2024-11-22 13:59:45,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 13:59:45,914 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 123 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 13:59:45,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 305 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 13:59:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-22 13:59:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-22 13:59:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 62 states have internal predecessors, (70), 25 states have call successors, (25), 11 states have call predecessors, (25), 12 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-22 13:59:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-22 13:59:45,925 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-22 13:59:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 13:59:45,925 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-22 13:59:45,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 13:59:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-22 13:59:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 13:59:45,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 13:59:45,927 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-22 13:59:45,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 13:59:46,128 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,SelfDestructingSolverStorable1 [2024-11-22 13:59:46,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 13:59:46,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:59:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash -270811530, now seen corresponding path program 1 times [2024-11-22 13:59:46,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:59:46,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128615152] [2024-11-22 13:59:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:46,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:59:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 13:59:51,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:59:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128615152] [2024-11-22 13:59:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128615152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 13:59:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657006133] [2024-11-22 13:59:51,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:59:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 13:59:51,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:59:51,861 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) [2024-11-22 13:59:51,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 13:59:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:59:56,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 13:59:56,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 13:59:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 13:59:58,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 13:59:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657006133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:59:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 13:59:58,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 13:59:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865138195] [2024-11-22 13:59:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:59:58,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:59:58,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:59:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:59:58,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 13:59:58,427 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-22 14:00:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:00:01,544 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-22 14:00:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 14:00:01,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 75 [2024-11-22 14:00:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:00:01,547 INFO L225 Difference]: With dead ends: 157 [2024-11-22 14:00:01,547 INFO L226 Difference]: Without dead ends: 96 [2024-11-22 14:00:01,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-22 14:00:01,548 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 128 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 14:00:01,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 434 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 14:00:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-22 14:00:01,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-22 14:00:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 25 states have call successors, (25), 11 states have call predecessors, (25), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 14:00:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-22 14:00:01,558 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-22 14:00:01,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:00:01,558 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-22 14:00:01,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-22 14:00:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-22 14:00:01,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 14:00:01,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:00:01,562 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-22 14:00:01,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 14:00:01,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:00:01,763 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:00:01,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:00:01,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1423335052, now seen corresponding path program 1 times [2024-11-22 14:00:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:00:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604002512] [2024-11-22 14:00:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:00:01,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:00:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:00:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-22 14:00:13,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:00:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604002512] [2024-11-22 14:00:13,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604002512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:00:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292085510] [2024-11-22 14:00:13,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:00:13,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:00:13,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:00:13,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:00:13,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process