./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/recursive-simple/afterrec-1.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/afterrec-1.yml/witness.yml -tc ../../../trunk/examples/toolchains/AutomizerC_IcfgBuilder.xml -s ../../../trunk/examples/settings/svcomp-Reach-32bit-Automizer_IcfgBuilder.epf --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bf1304be 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/recursive-simple/afterrec-1.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/afterrec-1.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 -tc ../../../trunk/examples/toolchains/AutomizerC_IcfgBuilder.xml -s ../../../trunk/examples/settings/svcomp-Reach-32bit-Automizer_IcfgBuilder.epf --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-bf1304b-m [2024-08-06 17:21:55,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-06 17:21:55,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-06 17:21:55,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-06 17:21:55,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-06 17:21:55,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-06 17:21:55,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-06 17:21:55,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-06 17:21:55,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-06 17:21:55,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-06 17:21:55,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-06 17:21:55,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-06 17:21:55,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-06 17:21:55,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-06 17:21:55,497 INFO L153 SettingsManager]: * Use SBE=true [2024-08-06 17:21:55,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-06 17:21:55,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-06 17:21:55,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-06 17:21:55,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-06 17:21:55,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-06 17:21:55,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-06 17:21:55,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-06 17:21:55,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-06 17:21:55,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-06 17:21:55,505 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-06 17:21:55,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-06 17:21:55,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-06 17:21:55,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-06 17:21:55,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-06 17:21:55,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-06 17:21:55,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-06 17:21:55,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-06 17:21:55,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-06 17:21:55,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-06 17:21:55,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-06 17:21:55,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-06 17:21:55,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-06 17:21:55,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-06 17:21:55,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-06 17:21:55,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-06 17:21:55,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-06 17:21:55,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-06 17:21:55,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-06 17:21:55,511 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2024-08-06 17:21:55,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-06 17:21:55,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-06 17:21:55,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-06 17:21:55,813 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-06 17:21:55,814 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-06 17:21:55,815 INFO L431 ainManager$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/afterrec-1.yml/witness.yml [2024-08-06 17:21:55,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-06 17:21:55,886 INFO L274 PluginConnector]: CDTParser initialized [2024-08-06 17:21:55,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/afterrec-1.c [2024-08-06 17:21:57,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-06 17:21:57,480 INFO L384 CDTParser]: Found 1 translation units. [2024-08-06 17:21:57,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-1.c [2024-08-06 17:21:57,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba541fd61/ccbd9f30dcb34b06a13966e29287c8c4/FLAG98ae51374 [2024-08-06 17:21:57,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba541fd61/ccbd9f30dcb34b06a13966e29287c8c4 [2024-08-06 17:21:57,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-06 17:21:57,868 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-06 17:21:57,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-06 17:21:57,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-06 17:21:57,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-06 17:21:57,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 06.08 05:21:55" (1/2) ... [2024-08-06 17:21:57,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2664be91 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 06.08 05:21:57, skipping insertion in model container [2024-08-06 17:21:57,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 06.08 05:21:55" (1/2) ... [2024-08-06 17:21:57,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1af6fa91 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 06.08 05:21:57, skipping insertion in model container [2024-08-06 17:21:57,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 05:21:57" (2/2) ... [2024-08-06 17:21:57,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2664be91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:57, skipping insertion in model container [2024-08-06 17:21:57,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 05:21:57" (2/2) ... [2024-08-06 17:21:57,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-06 17:21:58,052 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-1.c[318,331] [2024-08-06 17:21:58,057 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-06 17:21:58,067 INFO L200 MainTranslator]: Completed pre-run [2024-08-06 17:21:58,078 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/afterrec-1.c[318,331] [2024-08-06 17:21:58,079 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-06 17:21:58,097 INFO L204 MainTranslator]: Completed translation [2024-08-06 17:21:58,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58 WrapperNode [2024-08-06 17:21:58,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-06 17:21:58,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-06 17:21:58,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-06 17:21:58,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-06 17:21:58,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,139 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2024-08-06 17:21:58,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-06 17:21:58,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-06 17:21:58,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-06 17:21:58,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-06 17:21:58,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,165 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-06 17:21:58,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-06 17:21:58,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-06 17:21:58,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-06 17:21:58,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-06 17:21:58,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (1/1) ... [2024-08-06 17:21:58,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-06 17:21:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-06 17:21:58,221 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) [2024-08-06 17:21:58,223 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 [2024-08-06 17:21:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-06 17:21:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-08-06 17:21:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-08-06 17:21:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-06 17:21:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-06 17:21:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-06 17:21:58,339 INFO L244 CfgBuilder]: Building ICFG [2024-08-06 17:21:58,342 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-06 17:21:58,430 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-08-06 17:21:58,430 INFO L293 CfgBuilder]: Performing block encoding [2024-08-06 17:21:58,454 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-06 17:21:58,454 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-06 17:21:58,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 05:21:58 BoogieIcfgContainer [2024-08-06 17:21:58,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-06 17:21:58,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-06 17:21:58,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-06 17:21:58,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-06 17:21:58,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 06.08 05:21:55" (1/4) ... [2024-08-06 17:21:58,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b8a5e6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 06.08 05:21:58, skipping insertion in model container [2024-08-06 17:21:58,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 05:21:57" (2/4) ... [2024-08-06 17:21:58,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b8a5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 05:21:58, skipping insertion in model container [2024-08-06 17:21:58,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 05:21:58" (3/4) ... [2024-08-06 17:21:58,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b8a5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 05:21:58, skipping insertion in model container [2024-08-06 17:21:58,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 05:21:58" (4/4) ... [2024-08-06 17:21:58,468 INFO L119 eAbstractionObserver]: Analyzing ICFG afterrec-1.c [2024-08-06 17:21:58,468 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-06 17:21:58,488 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-06 17:21:58,488 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-06 17:21:58,543 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,544 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,544 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,544 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,545 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,546 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,547 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,549 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,551 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,560 INFO L90 WitnessUtils]: NestedWordAutomaton nwa = ( callAlphabet = {"call f(~n);" "call f(4);" }, internalAlphabet = {"~n := #in~n;" "assume ~n < 3;" "assume !(~n < 3);#t~post4 := ~n;~n := #t~post4 - 1;havoc #t~post4;" "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" "SUMMARY for call f(~n); srcloc: L8" "#t~ret5#1 := main_#res#1;assume { :end_inline_main } true;assume true;" "assume !false;" "assume false;assume false;" "assume true;" "SUMMARY for call f(4); srcloc: L13" }, returnAlphabet = {"#18#return;" "#20#return;" }, states = {"CountingPredicate [underlying: 9#$Ultimate##0true, annotation: [0, 0]]" "CountingPredicate [underlying: 8#L6true, annotation: [1, 0]]" "CountingPredicate [underlying: 5#L13-1true, annotation: [1, 0]]" "CountingPredicate [underlying: 4#fEXITtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 7#$Ultimate##0true, annotation: [1, 0]]" "CountingPredicate [underlying: 6#L13true, annotation: [0, 0]]" "CountingPredicate [underlying: 3#fFINALtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 12#L8true, annotation: [1, 0]]" "CountingPredicate [underlying: 2#ULTIMATE.startEXITtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 11#fErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 10#L8-1true, annotation: [1, 0]]" }, initialStates = {"CountingPredicate [underlying: 9#$Ultimate##0true, annotation: [0, 0]]" }, finalStates = {}, callTransitions = { ("CountingPredicate [underlying: 6#L13true, annotation: [0, 0]]" "call f(4);" "CountingPredicate [underlying: 7#$Ultimate##0true, annotation: [1, 0]]") ("CountingPredicate [underlying: 12#L8true, annotation: [1, 0]]" "call f(~n);" "CountingPredicate [underlying: 7#$Ultimate##0true, annotation: [1, 0]]") }, internalTransitions = { ("CountingPredicate [underlying: 9#$Ultimate##0true, annotation: [0, 0]]" "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" "CountingPredicate [underlying: 6#L13true, annotation: [0, 0]]") ("CountingPredicate [underlying: 8#L6true, annotation: [1, 0]]" "assume ~n < 3;" "CountingPredicate [underlying: 3#fFINALtrue, annotation: [1, 0]]") ("CountingPredicate [underlying: 8#L6true, annotation: [1, 0]]" "assume !(~n < 3);#t~post4 := ~n;~n := #t~post4 - 1;havoc #t~post4;" "CountingPredicate [underlying: 12#L8true, annotation: [1, 0]]") ("CountingPredicate [underlying: 5#L13-1true, annotation: [1, 0]]" "#t~ret5#1 := main_#res#1;assume { :end_inline_main } true;assume true;" "CountingPredicate [underlying: 2#ULTIMATE.startEXITtrue, annotation: [1, 0]]") ("CountingPredicate [underlying: 7#$Ultimate##0true, annotation: [1, 0]]" "~n := #in~n;" "CountingPredicate [underlying: 8#L6true, annotation: [1, 0]]") ("CountingPredicate [underlying: 3#fFINALtrue, annotation: [1, 0]]" "assume true;" "CountingPredicate [underlying: 4#fEXITtrue, annotation: [1, 0]]") ("CountingPredicate [underlying: 10#L8-1true, annotation: [1, 0]]" "assume !false;" "CountingPredicate [underlying: 11#fErr0ASSERT_VIOLATIONERROR_FUNCTIONtrue, annotation: [1, 0]]") ("CountingPredicate [underlying: 10#L8-1true, annotation: [1, 0]]" "assume false;assume false;" "CountingPredicate [underlying: 3#fFINALtrue, annotation: [1, 0]]") }, returnTransitions = { ("CountingPredicate [underlying: 4#fEXITtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 6#L13true, annotation: [0, 0]]" "#20#return;" "CountingPredicate [underlying: 5#L13-1true, annotation: [1, 0]]") ("CountingPredicate [underlying: 4#fEXITtrue, annotation: [1, 0]]" "CountingPredicate [underlying: 12#L8true, annotation: [1, 0]]" "#18#return;" "CountingPredicate [underlying: 10#L8-1true, annotation: [1, 0]]") } ); [2024-08-06 17:21:58,564 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 11 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-08-06 17:21:58,565 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,566 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,567 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,567 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,568 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,569 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,570 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,571 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,572 WARN L283 nessProductAutomaton]: assume ~n < 3;, isNegated false [2024-08-06 17:21:58,577 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 11 states to 0 states. [2024-08-06 17:21:58,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-06 17:21:58,603 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;@209080d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-06 17:21:58,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-06 17:21:58,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2024-08-06 17:21:58,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-08-06 17:21:58,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-06 17:21:58,613 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-08-06 17:21:58,621 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-06 17:21:58,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 05:21:58 BoogieIcfgContainer [2024-08-06 17:21:58,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-06 17:21:58,630 INFO L158 Benchmark]: Toolchain (without parser) took 762.30ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 61.5MB in the beginning and 131.6MB in the end (delta: -70.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-06 17:21:58,631 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 283.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-06 17:21:58,631 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 107.0MB in the beginning and 106.7MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-06 17:21:58,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.41ms. Allocated memory is still 134.2MB. Free memory was 61.2MB in the beginning and 50.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-08-06 17:21:58,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.42ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 151.5MB in the end (delta: -101.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-08-06 17:21:58,633 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 150.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-06 17:21:58,633 INFO L158 Benchmark]: RCFGBuilder took 278.80ms. Allocated memory is still 180.4MB. Free memory was 149.9MB in the beginning and 141.0MB in the end (delta: 8.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-08-06 17:21:58,634 INFO L158 Benchmark]: TraceAbstraction took 171.72ms. Allocated memory is still 180.4MB. Free memory was 140.0MB in the beginning and 131.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-08-06 17:21:58,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 134.2MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 283.1kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 107.0MB in the beginning and 106.7MB in the end (delta: 293.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.41ms. Allocated memory is still 134.2MB. Free memory was 61.2MB in the beginning and 50.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.42ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 50.3MB in the beginning and 151.5MB in the end (delta: -101.2MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 180.4MB. Free memory was 151.5MB in the beginning and 150.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.80ms. Allocated memory is still 180.4MB. Free memory was 149.9MB in the beginning and 141.0MB in the end (delta: 8.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 171.72ms. Allocated memory is still 180.4MB. Free memory was 140.0MB in the beginning and 131.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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 - PositiveResult [Line: 9]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-06 17:21:58,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE