./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.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_clear_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:41:55,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:41:55,120 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:41:55,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:41:55,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:41:55,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:41:55,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:41:55,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:41:55,149 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:41:55,151 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:41:55,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:41:55,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:41:55,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:41:55,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:41:55,153 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:41:55,154 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:41:55,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:41:55,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:41:55,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:41:55,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:41:55,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:41:55,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:41:55,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:41:55,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:41:55,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:41:55,159 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:41:55,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:41:55,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:41:55,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:41:55,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:41:55,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:41:55,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:41:55,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:41:55,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:41:55,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:41:55,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:41:55,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:41:55,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:41:55,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:41:55,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 602c22a5759f33fe3c7a18e3ef1531ea38defb370e298f7d0c16de4a5734f1a7 [2024-11-10 10:41:55,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:41:55,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:41:55,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:41:55,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:41:55,406 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:41:55,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2024-11-10 10:41:56,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:41:57,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:41:57,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clear_harness.i [2024-11-10 10:41:57,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb527a1d/4e1febd839a646958a7cc2ff29885800/FLAG548f883e2 [2024-11-10 10:41:57,309 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb527a1d/4e1febd839a646958a7cc2ff29885800 [2024-11-10 10:41:57,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:41:57,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:41:57,314 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:41:57,314 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:41:57,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:41:57,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3842cfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57, skipping insertion in model container [2024-11-10 10:41:57,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:41:57,629 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.i[4494,4507] [2024-11-10 10:41:57,637 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.i[4554,4567] [2024-11-10 10:41:58,240 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,241 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,244 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,246 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,249 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,263 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,268 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,269 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,270 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,271 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,272 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,591 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,602 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:41:58,706 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:41:58,719 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.i[4494,4507] [2024-11-10 10:41:58,720 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.i[4554,4567] [2024-11-10 10:41:58,786 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,786 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,787 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,791 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,791 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,800 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,802 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,803 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,804 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,804 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,806 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,809 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,810 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,877 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,882 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:58,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-10 10:41:58,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:41:59,124 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:41:59,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59 WrapperNode [2024-11-10 10:41:59,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:41:59,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:41:59,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:41:59,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:41:59,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,256 INFO L138 Inliner]: procedures = 679, calls = 1574, calls flagged for inlining = 46, calls inlined = 6, statements flattened = 584 [2024-11-10 10:41:59,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:41:59,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:41:59,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:41:59,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:41:59,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,348 INFO L175 MemorySlicer]: Split 291 memory accesses to 6 slices as follows [2, 9, 238, 3, 5, 34]. 82 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [2, 5, 6, 1, 5, 5]. The 237 writes are split as follows [0, 0, 232, 1, 0, 4]. [2024-11-10 10:41:59,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,373 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:41:59,403 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:41:59,404 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:41:59,404 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:41:59,404 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (1/1) ... [2024-11-10 10:41:59,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:41:59,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:41:59,440 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 10:41:59,443 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 10:41:59,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:41:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-10 10:41:59,485 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-10 10:41:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-10 10:41:59,485 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-10 10:41:59,485 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:41:59,485 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:41:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:41:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:41:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:41:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:41:59,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:41:59,487 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:41:59,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:41:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:41:59,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:41:59,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:41:59,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:41:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-10 10:41:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:41:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_clear [2024-11-10 10:41:59,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_clear [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:41:59,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:41:59,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:41:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:41:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:41:59,493 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:41:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-10 10:41:59,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-10 10:41:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:41:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:41:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:41:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:41:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:41:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:41:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:41:59,734 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:41:59,736 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:41:59,777 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-10 10:41:59,833 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-10 10:41:59,896 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 10:41:59,900 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:42:05,038 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-10 10:42:05,038 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:42:05,058 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:42:05,062 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:42:05,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:05 BoogieIcfgContainer [2024-11-10 10:42:05,063 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:42:05,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:42:05,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:42:05,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:42:05,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:41:57" (1/3) ... [2024-11-10 10:42:05,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0c5b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:05, skipping insertion in model container [2024-11-10 10:42:05,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:59" (2/3) ... [2024-11-10 10:42:05,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0c5b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:05, skipping insertion in model container [2024-11-10 10:42:05,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:05" (3/3) ... [2024-11-10 10:42:05,073 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clear_harness.i [2024-11-10 10:42:05,088 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:42:05,089 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:42:05,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:42:05,164 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;@536b058a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:42:05,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:42:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 64 states have (on average 1.1875) internal successors, (76), 65 states have internal predecessors, (76), 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) [2024-11-10 10:42:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 10:42:05,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:05,185 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] [2024-11-10 10:42:05,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:05,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 152351040, now seen corresponding path program 1 times [2024-11-10 10:42:05,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:05,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94337599] [2024-11-10 10:42:05,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:05,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 10:42:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 10:42:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:42:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-10 10:42:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94337599] [2024-11-10 10:42:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94337599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:10,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:42:10,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:42:10,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053748904] [2024-11-10 10:42:10,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:10,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:42:10,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:10,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:42:10,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:10,419 INFO L87 Difference]: Start difference. First operand has 102 states, 64 states have (on average 1.1875) internal successors, (76), 65 states have internal predecessors, (76), 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 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:14,508 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 10:42:16,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:16,082 INFO L93 Difference]: Finished difference Result 206 states and 277 transitions. [2024-11-10 10:42:16,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:42:16,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 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 [2024-11-10 10:42:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:16,092 INFO L225 Difference]: With dead ends: 206 [2024-11-10 10:42:16,092 INFO L226 Difference]: Without dead ends: 106 [2024-11-10 10:42:16,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:16,098 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:16,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 128 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-10 10:42:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-10 10:42:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-10 10:42:16,139 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) [2024-11-10 10:42:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 118 transitions. [2024-11-10 10:42:16,143 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 118 transitions. Word has length 60 [2024-11-10 10:42:16,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:16,143 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 118 transitions. [2024-11-10 10:42:16,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:16,144 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 118 transitions. [2024-11-10 10:42:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 10:42:16,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:16,146 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] [2024-11-10 10:42:16,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:42:16,147 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:16,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash 352882526, now seen corresponding path program 1 times [2024-11-10 10:42:16,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:16,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98339642] [2024-11-10 10:42:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:16,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 10:42:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 10:42:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 10:42:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-10 10:42:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:21,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98339642] [2024-11-10 10:42:21,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98339642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:42:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067332260] [2024-11-10 10:42:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:21,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:42:21,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:42:21,847 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 10:42:21,848 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 10:42:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:27,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:42:27,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:42:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 10:42:28,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:42:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067332260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:28,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:42:28,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-10 10:42:28,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222859482] [2024-11-10 10:42:28,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:28,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:42:28,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:28,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:42:28,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 10:42:28,369 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) [2024-11-10 10:42:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:30,617 INFO L93 Difference]: Finished difference Result 160 states and 199 transitions. [2024-11-10 10:42:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:42:30,618 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 [2024-11-10 10:42:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:30,620 INFO L225 Difference]: With dead ends: 160 [2024-11-10 10:42:30,620 INFO L226 Difference]: Without dead ends: 98 [2024-11-10 10:42:30,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:42:30,622 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 123 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:30,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 305 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-10 10:42:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-10 10:42:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-10 10:42:30,636 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) [2024-11-10 10:42:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-10 10:42:30,638 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 60 [2024-11-10 10:42:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:30,641 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-10 10:42:30,642 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) [2024-11-10 10:42:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-10 10:42:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-10 10:42:30,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:30,647 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] [2024-11-10 10:42:30,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 10:42:30,848 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 10:42:30,849 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:30,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash 985115396, now seen corresponding path program 1 times [2024-11-10 10:42:30,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:30,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343518693] [2024-11-10 10:42:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:36,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:36,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:36,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:36,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:42:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:42:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:42:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:42:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:42:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-10 10:42:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343518693] [2024-11-10 10:42:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343518693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:42:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552620411] [2024-11-10 10:42:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:37,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:42:37,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:42:37,967 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 10:42:37,968 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 10:42:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 10:42:43,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:42:45,420 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 10:42:45,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:42:45,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552620411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:45,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:42:45,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-10 10:42:45,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881259468] [2024-11-10 10:42:45,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:45,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:42:45,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:42:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-10 10:42:45,424 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) [2024-11-10 10:42:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:49,692 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2024-11-10 10:42:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:42:49,693 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 [2024-11-10 10:42:49,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:49,694 INFO L225 Difference]: With dead ends: 157 [2024-11-10 10:42:49,694 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 10:42:49,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-10 10:42:49,696 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 128 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s 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, 3.2s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:49,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 434 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-10 10:42:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 10:42:49,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-10 10:42:49,710 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) [2024-11-10 10:42:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2024-11-10 10:42:49,711 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 75 [2024-11-10 10:42:49,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:49,712 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2024-11-10 10:42:49,712 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) [2024-11-10 10:42:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2024-11-10 10:42:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-10 10:42:49,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:49,715 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] [2024-11-10 10:42:49,742 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 10:42:49,916 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 10:42:49,916 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:49,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1121842090, now seen corresponding path program 1 times [2024-11-10 10:42:49,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:49,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500503243] [2024-11-10 10:42:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:05,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:43:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:06,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:43:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:06,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:43:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:06,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:43:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:43:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:43:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 10:43:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 10:43:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 10:43:07,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:43:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500503243] [2024-11-10 10:43:07,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500503243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:43:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299129460] [2024-11-10 10:43:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:07,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:43:07,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:43:07,509 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 10:43:07,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process