./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0218.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0218.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl --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 d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:05,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:05,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:22:05,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:05,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:05,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:05,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:05,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:05,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:05,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:05,166 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:05,166 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:22:05,167 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:22:05,167 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:22:05,168 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:22:05,168 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:22:05,169 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:22:05,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:05,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:22:05,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:22:05,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:22:05,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:22:05,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:05,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:22:05,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:22:05,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:22:05,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:22:05,174 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:22:05,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:05,175 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:22:05,175 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:05,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:05,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:05,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:05,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:22:05,178 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:22:05,178 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_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0144744ce48339ff9171f70682ff014d707c8affcdd45929fe7382e980b7693 [2023-11-12 02:22:05,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:05,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:05,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:05,537 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:05,538 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:05,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/memsafety/test-0218.i [2023-11-12 02:22:08,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:09,024 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:09,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/sv-benchmarks/c/memsafety/test-0218.i [2023-11-12 02:22:09,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/data/4ab10ecd3/bbb99ef5ad184296b57131ab370f4cf4/FLAGba3cac5c7 [2023-11-12 02:22:09,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/data/4ab10ecd3/bbb99ef5ad184296b57131ab370f4cf4 [2023-11-12 02:22:09,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:09,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:09,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:09,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:09,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:09,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2720f717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09, skipping insertion in model container [2023-11-12 02:22:09,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:09,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:09,702 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:09,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:09,790 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:09,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09 WrapperNode [2023-11-12 02:22:09,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:09,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:09,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:09,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:09,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,869 INFO L138 Inliner]: procedures = 181, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 204 [2023-11-12 02:22:09,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:09,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:09,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:09,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:09,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:09,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:09,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:09,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:09,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (1/1) ... [2023-11-12 02:22:09,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:22:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:09,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:10,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:22:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:22:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:22:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:22:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:22:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:22:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:22:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:22:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:10,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:10,262 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:10,264 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:10,268 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:22:10,626 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:10,633 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:10,633 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 02:22:10,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:10 BoogieIcfgContainer [2023-11-12 02:22:10,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:10,637 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:22:10,638 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:22:10,642 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:22:10,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:22:10,643 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:22:09" (1/3) ... [2023-11-12 02:22:10,645 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@206d1f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:22:10, skipping insertion in model container [2023-11-12 02:22:10,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:22:10,645 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:09" (2/3) ... [2023-11-12 02:22:10,646 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@206d1f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:22:10, skipping insertion in model container [2023-11-12 02:22:10,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:22:10,646 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:10" (3/3) ... [2023-11-12 02:22:10,648 INFO L332 chiAutomizerObserver]: Analyzing ICFG test-0218.i [2023-11-12 02:22:10,709 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:22:10,709 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:22:10,709 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:22:10,710 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:22:10,710 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:22:10,710 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:22:10,710 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:22:10,711 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:22:10,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 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) [2023-11-12 02:22:10,749 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:22:10,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:22:10,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:22:10,756 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:22:10,757 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:22:10,757 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:22:10,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 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) [2023-11-12 02:22:10,766 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:22:10,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:22:10,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:22:10,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:22:10,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:22:10,775 INFO L748 eck$LassoCheckResult]: Stem: 26#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_#t~nondet29#1, main_#t~ret32#1, main_#t~nondet31#1, main_#t~nondet28#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 10#L726-3true [2023-11-12 02:22:10,776 INFO L750 eck$LassoCheckResult]: Loop: 10#L726-3true havoc main_#t~nondet28#1; 41#L723-1true assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1; 14#L724-3true assume !true; 6#L726-2true assume !true; 10#L726-3true [2023-11-12 02:22:10,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2023-11-12 02:22:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:10,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871957449] [2023-11-12 02:22:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:10,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:10,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:11,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1424112, now seen corresponding path program 1 times [2023-11-12 02:22:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844039898] [2023-11-12 02:22:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:11,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:11,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844039898] [2023-11-12 02:22:11,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844039898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:11,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:11,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186613551] [2023-11-12 02:22:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:11,107 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:22:11,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:11,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:22:11,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:22:11,149 INFO L87 Difference]: Start difference. First operand has 53 states, 50 states have (on average 1.52) internal successors, (76), 50 states have internal predecessors, (76), 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) [2023-11-12 02:22:11,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:11,161 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2023-11-12 02:22:11,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 72 transitions. [2023-11-12 02:22:11,165 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:22:11,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 49 states and 68 transitions. [2023-11-12 02:22:11,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2023-11-12 02:22:11,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-12 02:22:11,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2023-11-12 02:22:11,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:22:11,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:22:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2023-11-12 02:22:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 02:22:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 46 states have internal predecessors, (66), 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) [2023-11-12 02:22:11,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2023-11-12 02:22:11,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:22:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:22:11,214 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:22:11,214 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:22:11,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 68 transitions. [2023-11-12 02:22:11,215 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:22:11,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:22:11,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:22:11,216 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:22:11,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:22:11,216 INFO L748 eck$LassoCheckResult]: Stem: 150#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 151#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_#t~nondet29#1, main_#t~ret32#1, main_#t~nondet31#1, main_#t~nondet28#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 127#L726-3 [2023-11-12 02:22:11,217 INFO L750 eck$LassoCheckResult]: Loop: 127#L726-3 havoc main_#t~nondet28#1; 128#L723-1 assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1; 134#L724-3 havoc main_#t~nondet29#1; 135#L724-1 assume !(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1; 119#L726-2 havoc main_#t~nondet31#1; 120#L726 assume !(0 != main_#t~nondet31#1);havoc main_#t~nondet31#1; 127#L726-3 [2023-11-12 02:22:11,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2023-11-12 02:22:11,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:11,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677951664] [2023-11-12 02:22:11,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:11,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1365770348, now seen corresponding path program 1 times [2023-11-12 02:22:11,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:11,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871499921] [2023-11-12 02:22:11,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:11,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1651158066, now seen corresponding path program 1 times [2023-11-12 02:22:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:11,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745529797] [2023-11-12 02:22:11,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:11,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:22:11 BoogieIcfgContainer [2023-11-12 02:22:11,572 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:22:11,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:22:11,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:22:11,574 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:22:11,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:10" (3/4) ... [2023-11-12 02:22:11,576 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:22:11,622 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:22:11,622 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:22:11,623 INFO L158 Benchmark]: Toolchain (without parser) took 2545.53ms. Allocated memory is still 167.8MB. Free memory was 127.2MB in the beginning and 100.7MB in the end (delta: 26.5MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-11-12 02:22:11,624 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:11,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.58ms. Allocated memory is still 167.8MB. Free memory was 127.2MB in the beginning and 120.5MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:22:11,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.38ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 117.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:11,626 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:11,627 INFO L158 Benchmark]: RCFGBuilder took 698.62ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 92.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:11,627 INFO L158 Benchmark]: BuchiAutomizer took 934.61ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 102.1MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:11,628 INFO L158 Benchmark]: Witness Printer took 49.19ms. Allocated memory is still 167.8MB. Free memory was 102.1MB in the beginning and 100.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:11,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.58ms. Allocated memory is still 167.8MB. Free memory was 127.2MB in the beginning and 120.5MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.38ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 117.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 115.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 698.62ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 92.0MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 934.61ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 102.1MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.19ms. Allocated memory is still 167.8MB. Free memory was 102.1MB in the beginning and 100.7MB in the end (delta: 1.4MB). There was no memory consumed. 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 49 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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, 72 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, 72 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: 723]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L722] static list_t list; VAL [list={3:0}] Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 723]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L722] static list_t list; VAL [list={3:0}] Loop: [L723] COND TRUE __VERIFIER_nondet_int() [L724] COND FALSE !(__VERIFIER_nondet_int()) [L726] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:22:11,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0f04d82-6bc0-417f-9741-6aea6d8fa17a/bin/uautomizer-verify-uTZkv6EMXl/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)