./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0214.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0214.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:06:34,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:06:34,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:06:34,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:06:34,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:06:34,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:06:34,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:06:34,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:06:34,441 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:06:34,447 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:06:34,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:06:34,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:06:34,450 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:06:34,452 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:06:34,453 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:06:34,453 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:06:34,453 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:06:34,454 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:06:34,455 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:06:34,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:06:34,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:06:34,456 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:06:34,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:06:34,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:06:34,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:06:34,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:06:34,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:06:34,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:06:34,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:06:34,460 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:06:34,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:06:34,462 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:06:34,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:06:34,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:06:34,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:06:34,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:06:34,463 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:06:34,464 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:06:34,464 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 [2023-11-21 22:06:34,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:06:34,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:06:34,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:06:34,769 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:06:34,769 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:06:34,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/memsafety/test-0214.i [2023-11-21 22:06:38,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:06:38,425 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:06:38,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/sv-benchmarks/c/memsafety/test-0214.i [2023-11-21 22:06:38,451 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/data/a189e83fd/413328f863614d6080a7b075775c30c6/FLAG315128ef0 [2023-11-21 22:06:38,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/data/a189e83fd/413328f863614d6080a7b075775c30c6 [2023-11-21 22:06:38,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:06:38,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:06:38,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:38,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:06:38,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:06:38,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:38" (1/1) ... [2023-11-21 22:06:38,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9eb6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:38, skipping insertion in model container [2023-11-21 22:06:38,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:38" (1/1) ... [2023-11-21 22:06:38,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:06:39,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:39,104 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:06:39,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:39,224 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:06:39,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39 WrapperNode [2023-11-21 22:06:39,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:39,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:39,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:06:39,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:06:39,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,337 INFO L138 Inliner]: procedures = 181, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-21 22:06:39,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:39,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:06:39,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:06:39,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:06:39,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,373 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,403 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:06:39,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:06:39,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:06:39,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:06:39,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:06:39,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (1/1) ... [2023-11-21 22:06:39,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:06:39,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:06:39,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:06:39,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:06:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:06:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:06:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:06:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:06:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:06:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:06:39,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:06:39,692 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:06:39,695 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:06:39,700 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 22:06:40,142 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:06:40,155 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:06:40,155 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:06:40,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:40 BoogieIcfgContainer [2023-11-21 22:06:40,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:06:40,162 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:06:40,162 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:06:40,167 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:06:40,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:06:40,168 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:06:38" (1/3) ... [2023-11-21 22:06:40,170 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62095c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:06:40, skipping insertion in model container [2023-11-21 22:06:40,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:06:40,171 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:39" (2/3) ... [2023-11-21 22:06:40,173 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62095c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:06:40, skipping insertion in model container [2023-11-21 22:06:40,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:06:40,174 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:40" (3/3) ... [2023-11-21 22:06:40,176 INFO L332 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2023-11-21 22:06:40,259 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:06:40,259 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:06:40,259 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:06:40,262 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:06:40,262 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:06:40,262 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:06:40,262 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:06:40,263 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:06:40,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:06:40,295 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-21 22:06:40,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:06:40,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:06:40,322 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:06:40,322 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:06:40,323 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:06:40,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:06:40,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-21 22:06:40,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:06:40,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:06:40,336 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:06:40,337 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:06:40,345 INFO L748 eck$LassoCheckResult]: Stem: 38#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(8, 3);~#list~0.base, ~#list~0.offset := 3, 0;call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_#t~nondet20#1, main_#t~ret23#1, main_#t~nondet22#1, main_#t~nondet19#1, main_#t~nondet24#1, main_#t~mem25#1.base, main_#t~mem25#1.offset, main_#t~mem26#1.base, main_#t~mem26#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 40#L728-3true [2023-11-21 22:06:40,346 INFO L750 eck$LassoCheckResult]: Loop: 40#L728-3true havoc main_#t~nondet19#1; 6#L725-1true assume !!(0 != main_#t~nondet19#1);havoc main_#t~nondet19#1; 15#L726-3true assume !true; 20#L728-2true assume !true; 40#L728-3true [2023-11-21 22:06:40,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2023-11-21 22:06:40,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:40,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554266692] [2023-11-21 22:06:40,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:40,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:40,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1423024, now seen corresponding path program 1 times [2023-11-21 22:06:40,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:40,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606555834] [2023-11-21 22:06:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:40,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:06:40,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:06:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:06:40,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606555834] [2023-11-21 22:06:40,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606555834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:06:40,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:06:40,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:06:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567056187] [2023-11-21 22:06:40,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:06:40,646 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:06:40,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:06:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:06:40,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:06:40,717 INFO L87 Difference]: Start difference. First operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:06:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:06:40,736 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2023-11-21 22:06:40,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2023-11-21 22:06:40,746 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-21 22:06:40,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 41 states and 56 transitions. [2023-11-21 22:06:40,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2023-11-21 22:06:40,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2023-11-21 22:06:40,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 56 transitions. [2023-11-21 22:06:40,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:06:40,762 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-21 22:06:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 56 transitions. [2023-11-21 22:06:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-21 22:06:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:06:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2023-11-21 22:06:40,805 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-21 22:06:40,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:06:40,814 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-21 22:06:40,814 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:06:40,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 56 transitions. [2023-11-21 22:06:40,819 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-21 22:06:40,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:06:40,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:06:40,820 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:06:40,821 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:06:40,821 INFO L748 eck$LassoCheckResult]: Stem: 137#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(8, 3);~#list~0.base, ~#list~0.offset := 3, 0;call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_#t~nondet20#1, main_#t~ret23#1, main_#t~nondet22#1, main_#t~nondet19#1, main_#t~nondet24#1, main_#t~mem25#1.base, main_#t~mem25#1.offset, main_#t~mem26#1.base, main_#t~mem26#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 101#L728-3 [2023-11-21 22:06:40,821 INFO L750 eck$LassoCheckResult]: Loop: 101#L728-3 havoc main_#t~nondet19#1; 104#L725-1 assume !!(0 != main_#t~nondet19#1);havoc main_#t~nondet19#1; 106#L726-3 havoc main_#t~nondet20#1; 121#L726-1 assume !(0 != main_#t~nondet20#1);havoc main_#t~nondet20#1; 123#L728-2 havoc main_#t~nondet22#1; 126#L728 assume !(0 != main_#t~nondet22#1);havoc main_#t~nondet22#1; 101#L728-3 [2023-11-21 22:06:40,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2023-11-21 22:06:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:40,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630828356] [2023-11-21 22:06:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:40,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:40,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1365769260, now seen corresponding path program 1 times [2023-11-21 22:06:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486299613] [2023-11-21 22:06:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:40,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:40,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:06:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1651159154, now seen corresponding path program 1 times [2023-11-21 22:06:40,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:06:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934501237] [2023-11-21 22:06:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:06:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:06:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:40,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:06:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:41,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:06:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:06:41,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:06:41 BoogieIcfgContainer [2023-11-21 22:06:41,291 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:06:41,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:06:41,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:06:41,293 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:06:41,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:06:40" (3/4) ... [2023-11-21 22:06:41,295 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:06:41,332 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:06:41,332 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:06:41,333 INFO L158 Benchmark]: Toolchain (without parser) took 2862.59ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 107.0MB in the beginning and 115.1MB in the end (delta: -8.1MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,334 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:06:41,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 754.25ms. Allocated memory is still 148.9MB. Free memory was 106.4MB in the beginning and 85.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.01ms. Allocated memory is still 148.9MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,336 INFO L158 Benchmark]: Boogie Preprocessor took 106.32ms. Allocated memory is still 148.9MB. Free memory was 82.8MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,337 INFO L158 Benchmark]: RCFGBuilder took 709.95ms. Allocated memory is still 148.9MB. Free memory was 79.7MB in the beginning and 58.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,338 INFO L158 Benchmark]: BuchiAutomizer took 1129.63ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 58.2MB in the beginning and 117.0MB in the end (delta: -58.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:06:41,338 INFO L158 Benchmark]: Witness Printer took 40.27ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 115.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:06:41,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 148.9MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 754.25ms. Allocated memory is still 148.9MB. Free memory was 106.4MB in the beginning and 85.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.01ms. Allocated memory is still 148.9MB. Free memory was 85.4MB in the beginning and 82.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.32ms. Allocated memory is still 148.9MB. Free memory was 82.8MB in the beginning and 79.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 709.95ms. Allocated memory is still 148.9MB. Free memory was 79.7MB in the beginning and 58.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 1129.63ms. Allocated memory was 148.9MB in the beginning and 188.7MB in the end (delta: 39.8MB). Free memory was 58.2MB in the beginning and 117.0MB in the end (delta: -58.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.27ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 115.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 41 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 60 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L724] static list_t list; VAL [list={3:0}] Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 725]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L724] static list_t list; VAL [list={3:0}] Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:06:41,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb3af52-1596-41e7-ab7d-caeacd24ca5b/bin/uautomizer-verify-bycVGegfSx/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(TERM)