./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/verifythis/tree_del_iter.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/tree_del_iter.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/verifythis/tree_del_iter.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/tree_del_iter.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:30:52,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:30:52,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:30:52,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:30:52,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:30:52,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:30:52,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:30:52,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:30:52,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:30:52,362 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:30:52,362 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:30:52,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:30:52,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:30:52,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:30:52,368 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:30:52,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:30:52,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:30:52,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:30:52,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:30:52,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:30:52,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:30:52,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:30:52,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:30:52,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:30:52,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:30:52,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:30:52,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:30:52,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:30:52,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:30:52,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:30:52,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:30:52,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:30:52,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:30:52,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:30:52,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:30:52,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:30:52,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:30:52,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:30:52,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:30:52,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:30:52,378 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:30:52,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:30:52,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:30:52,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:30:52,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:30:52,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:30:52,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:30:52,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:30:52,661 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:30:52,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_del_iter.c [2024-08-14 14:30:54,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:30:54,419 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:30:54,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_del_iter.c [2024-08-14 14:30:54,427 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e131d4d4c/81fb0913677f4817a1877f8af199c8fe/FLAG36216a262 [2024-08-14 14:30:54,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e131d4d4c/81fb0913677f4817a1877f8af199c8fe [2024-08-14 14:30:54,451 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:30:54,452 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:30:54,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/tree_del_iter.yml/witness.yml [2024-08-14 14:30:54,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:30:54,540 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:30:54,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:54,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:30:54,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:30:54,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:54" (1/2) ... [2024-08-14 14:30:54,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90a2d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:54, skipping insertion in model container [2024-08-14 14:30:54,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:54" (1/2) ... [2024-08-14 14:30:54,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f98cb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:54, skipping insertion in model container [2024-08-14 14:30:54,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:54" (2/2) ... [2024-08-14 14:30:54,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90a2d9a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54, skipping insertion in model container [2024-08-14 14:30:54,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:54" (2/2) ... [2024-08-14 14:30:54,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:30:54,730 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_del_iter.c[586,599] [2024-08-14 14:30:54,750 WARN L1644 CHandler]: Possible shadowing of function min [2024-08-14 14:30:54,772 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:54,784 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:30:54,800 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_del_iter.c[586,599] [2024-08-14 14:30:54,814 WARN L1644 CHandler]: Possible shadowing of function min [2024-08-14 14:30:54,829 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:54,849 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:30:54,850 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54 WrapperNode [2024-08-14 14:30:54,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:54,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:30:54,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:30:54,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:30:54,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,907 INFO L175 MemorySlicer]: Split 28 memory accesses to 4 slices as follows [2, 2, 19, 5]. 68 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 7 writes are split as follows [0, 1, 4, 2]. [2024-08-14 14:30:54,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:30:54,941 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:30:54,941 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:30:54,941 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:30:54,942 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (1/1) ... [2024-08-14 14:30:54,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:30:54,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:54,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:30:54,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:30:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:30:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:30:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_cycle_if_not [2024-08-14 14:30:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:30:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-08-14 14:30:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:30:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-08-14 14:30:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure assume_cycle_if_not [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:30:55,035 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:30:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-08-14 14:30:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-08-14 14:30:55,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-08-14 14:30:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-08-14 14:30:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-08-14 14:30:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-08-14 14:30:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure min [2024-08-14 14:30:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:30:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:30:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-08-14 14:30:55,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2024-08-14 14:30:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure size [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure task [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:30:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:30:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:30:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:30:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-08-14 14:30:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-08-14 14:30:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:30:55,208 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:30:55,211 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:30:55,350 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L39: havoc ~a~0, ~b~0, ~c~0; [2024-08-14 14:30:55,405 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L27: havoc ~n~0.base, ~n~0.offset; [2024-08-14 14:30:55,624 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-08-14 14:30:55,625 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:30:55,640 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:30:55,640 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:30:55,641 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:55 BoogieIcfgContainer [2024-08-14 14:30:55,641 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:30:55,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:30:55,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:30:55,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:30:55,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:30:54" (1/4) ... [2024-08-14 14:30:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43701354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:30:55, skipping insertion in model container [2024-08-14 14:30:55,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:54" (2/4) ... [2024-08-14 14:30:55,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43701354 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:55, skipping insertion in model container [2024-08-14 14:30:55,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:54" (3/4) ... [2024-08-14 14:30:55,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43701354 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:55, skipping insertion in model container [2024-08-14 14:30:55,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:55" (4/4) ... [2024-08-14 14:30:55,650 INFO L119 eAbstractionObserver]: Analyzing ICFG tree_del_iter.c [2024-08-14 14:30:55,651 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:30:55,673 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:30:55,674 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:30:55,711 INFO L92 WitnessUtils]: Constructing product of automaton with 105 states and violation witness of the following lengths: [44] [2024-08-14 14:30:55,715 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 105 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 68 states have internal predecessors, (83), 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) [2024-08-14 14:30:56,014 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 779 states to 256 states. [2024-08-14 14:30:56,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:30:56,044 INFO L357 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, mHoare=false, 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;@52f21b5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:30:56,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:30:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2024-08-14 14:30:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-08-14 14:30:56,063 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:56,064 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:56,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:56,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:56,070 INFO L85 PathProgramCache]: Analyzing trace with hash 342026868, now seen corresponding path program 1 times [2024-08-14 14:30:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133166683] [2024-08-14 14:30:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:56,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:30:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:56,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:30:56,568 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:30:56,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:30:56,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:30:56,576 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-08-14 14:30:56,581 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:30:56,618 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:30:56 BoogieIcfgContainer [2024-08-14 14:30:56,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:30:56,619 INFO L158 Benchmark]: Toolchain (without parser) took 2079.88ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 91.8MB in the beginning and 71.5MB in the end (delta: 20.3MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2024-08-14 14:30:56,620 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 148.9MB. Free memory was 116.3MB in the beginning and 116.3MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:56,620 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:56,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.23ms. Allocated memory is still 148.9MB. Free memory was 91.8MB in the beginning and 78.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-08-14 14:30:56,621 INFO L158 Benchmark]: Boogie Preprocessor took 89.48ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 75.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-14 14:30:56,622 INFO L158 Benchmark]: IcfgBuilder took 699.91ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 74.5MB in the beginning and 163.7MB in the end (delta: -89.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-08-14 14:30:56,622 INFO L158 Benchmark]: TraceAbstraction took 974.16ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 71.5MB in the end (delta: 92.3MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2024-08-14 14:30:56,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 148.9MB. Free memory was 116.3MB in the beginning and 116.3MB in the end (delta: 23.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 148.9MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.23ms. Allocated memory is still 148.9MB. Free memory was 91.8MB in the beginning and 78.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.48ms. Allocated memory is still 148.9MB. Free memory was 78.6MB in the beginning and 75.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 699.91ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 74.5MB in the beginning and 163.7MB in the end (delta: -89.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * TraceAbstraction took 974.16ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 71.5MB in the end (delta: 92.3MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L110] CALL, EXPR nondet_tree() [L25] COND FALSE !(__VERIFIER_nondet_bool()) [L28] struct node *n = (struct node *)malloc(sizeof(struct node)); [L29] n->data = __VERIFIER_nondet_int() [L30] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L30] RET, EXPR nondet_tree() VAL [n={-1:0}] [L30] n->left = nondet_tree() [L31] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L31] RET, EXPR nondet_tree() VAL [n={-1:0}] [L31] n->right = nondet_tree() [L32] return n; VAL [\result={-1:0}] [L110] RET, EXPR nondet_tree() [L110] CALL task(nondet_tree()) VAL [\old(t)={-1:0}] [L86] CALL, EXPR min(t) VAL [\old(n)={-1:0}] [L37] COND FALSE !(!n) [L40] EXPR n->data [L40] int a = n->data; [L41] EXPR n->left VAL [\old(n)={-1:0}, a=2147483647, n={-1:0}] [L41] CALL, EXPR min(n->left) VAL [\old(n)={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\old(n)={0:0}, \result=2147483647] [L41] RET, EXPR min(n->left) VAL [\old(n)={-1:0}, a=2147483647, n={-1:0}] [L41] int b = min(n->left); [L42] EXPR n->right VAL [\old(n)={-1:0}, a=2147483647, b=2147483647] [L42] CALL, EXPR min(n->right) VAL [\old(n)={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\old(n)={0:0}, \result=2147483647] [L42] RET, EXPR min(n->right) VAL [\old(n)={-1:0}, a=2147483647, b=2147483647] [L42] int c = min(n->right); [L43] COND TRUE b <= a && b <= c [L43] return b; VAL [\old(n)={-1:0}, \result=2147483647] [L86] RET, EXPR min(t) VAL [\old(t)={-1:0}, t={-1:0}] [L86] int a = min(t); [L87] int b; VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, t={-1:0}] [L89] CALL, EXPR size(t) VAL [\old(t)={-1:0}] [L81] COND FALSE !(!t) [L82] EXPR t->left VAL [\old(t)={-1:0}, t={-1:0}] [L82] CALL, EXPR size(t->left) VAL [\old(t)={0:0}] [L81] COND TRUE !t [L81] return 0; VAL [\old(t)={0:0}, \result=0] [L82] RET, EXPR size(t->left) VAL [\old(t)={-1:0}, t={-1:0}] [L82] EXPR t->right VAL [\old(t)={-1:0}] [L82] CALL, EXPR size(t->right) VAL [\old(t)={0:0}] [L81] COND TRUE !t [L81] return 0; VAL [\old(t)={0:0}, \result=0] [L82] RET, EXPR size(t->right) VAL [\old(t)={-1:0}] [L82] return size(t->left) + size(t->right) + 1; [L89] RET, EXPR size(t) VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, t={-1:0}] [L89] int n = size(t); [L90] CALL assume_cycle_if_not(n != 0) VAL [\old(cond)=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1] [L90] RET assume_cycle_if_not(n != 0) VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, n=1, t={-1:0}] [L91] EXPR, FCALL calloc(n, sizeof(int)) VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, n=1, t={-1:0}] [L91] int *x = calloc(n, sizeof(int)); [L92] CALL tree_inorder(t, x, n) VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}] [L70] COND FALSE !(!t) [L73] EXPR t->left VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}, a={-2:0}, i=1, t={-1:0}] [L73] CALL, EXPR tree_inorder(t->left, a, i) VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={0:0}] [L70] COND TRUE !t [L71] return i; VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={0:0}, \result=1, a={-2:0}] [L73] RET, EXPR tree_inorder(t->left, a, i) VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}, a={-2:0}, i=1, t={-1:0}] [L73] i = tree_inorder(t->left, a, i) [L74] EXPR i++ [L74] EXPR t->data [L74] a[i++] = t->data [L75] EXPR t->right VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}, a={-2:0}, i=2] [L75] CALL, EXPR tree_inorder(t->right, a, i) VAL [\old(a)={-2:0}, \old(i)=2, \old(t)={0:0}] [L70] COND TRUE !t [L71] return i; VAL [\old(a)={-2:0}, \old(i)=2, \old(t)={0:0}, \result=2, a={-2:0}] [L75] RET, EXPR tree_inorder(t->right, a, i) VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}, a={-2:0}, i=2] [L75] i = tree_inorder(t->right, a, i) [L76] return i; VAL [\old(a)={-2:0}, \old(i)=1, \old(t)={-1:0}, \result=2, a={-2:0}, i=2] [L92] RET tree_inorder(t, x, n) VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, n=1, t={-1:0}, x={-2:0}] [L93] EXPR x[0] VAL [\old(t)={-1:0}, a=2147483647, b={5:0}, n=1, t={-1:0}, x={-2:0}] [L93] CALL __VERIFIER_assert(a == x[0]) VAL [\old(cond)=0] [L16] COND TRUE !cond VAL [\old(cond)=0] [L16] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-14 14:30:56,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE