./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0217.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 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_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/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_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0217.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/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_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/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 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:10:31,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:10:31,989 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-12 02:10:31,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:10:31,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:10:32,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:10:32,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:10:32,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:10:32,040 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:10:32,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:10:32,046 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:10:32,047 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:10:32,048 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:10:32,049 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:10:32,050 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:10:32,050 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:10:32,051 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:10:32,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:10:32,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:10:32,053 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:10:32,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:10:32,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:10:32,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:10:32,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:10:32,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:10:32,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:10:32,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:10:32,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:10:32,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:10:32,058 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:10:32,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:10:32,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:10:32,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:10:32,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:10:32,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:10:32,062 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:10:32,062 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_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163bc3b45d6f21a8e478003f84571178259b289b3d9717ecadbc4595fc507bec [2023-11-12 02:10:32,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:10:32,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:10:32,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:10:32,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:10:32,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:10:32,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/memsafety/test-0217.i [2023-11-12 02:10:35,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:10:35,825 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:10:35,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/sv-benchmarks/c/memsafety/test-0217.i [2023-11-12 02:10:35,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/data/4c96c6ba7/afd176d3c43249d493e6c5ea31605c88/FLAGba2de9eba [2023-11-12 02:10:35,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/data/4c96c6ba7/afd176d3c43249d493e6c5ea31605c88 [2023-11-12 02:10:35,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:10:35,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:10:35,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:35,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:10:35,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:10:35,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:35" (1/1) ... [2023-11-12 02:10:35,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4293b3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:35, skipping insertion in model container [2023-11-12 02:10:35,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:10:35" (1/1) ... [2023-11-12 02:10:35,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:10:36,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:36,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:10:36,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:10:36,541 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:10:36,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36 WrapperNode [2023-11-12 02:10:36,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:10:36,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:36,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:10:36,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:10:36,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,628 INFO L138 Inliner]: procedures = 181, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2023-11-12 02:10:36,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:10:36,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:10:36,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:10:36,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:10:36,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,702 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:10:36,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:10:36,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:10:36,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:10:36,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (1/1) ... [2023-11-12 02:10:36,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:10:36,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:10:36,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:10:36,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:10:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:10:36,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:10:36,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:10:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:10:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:10:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:10:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:10:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:10:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:10:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:10:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:10:36,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:10:36,982 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:10:36,985 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:10:36,990 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:10:37,456 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:10:37,472 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:10:37,472 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-12 02:10:37,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:37 BoogieIcfgContainer [2023-11-12 02:10:37,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:10:37,476 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:10:37,476 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:10:37,480 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:10:37,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:37,489 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:10:35" (1/3) ... [2023-11-12 02:10:37,490 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25295aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:10:37, skipping insertion in model container [2023-11-12 02:10:37,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:37,491 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:10:36" (2/3) ... [2023-11-12 02:10:37,491 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25295aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:10:37, skipping insertion in model container [2023-11-12 02:10:37,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:10:37,491 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:37" (3/3) ... [2023-11-12 02:10:37,493 INFO L332 chiAutomizerObserver]: Analyzing ICFG test-0217.i [2023-11-12 02:10:37,550 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:10:37,551 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:10:37,551 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:10:37,551 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:10:37,551 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:10:37,551 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:10:37,551 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:10:37,552 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:10:37,556 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 02:10:37,585 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:10:37,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:37,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:37,592 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:10:37,592 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:10:37,592 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:10:37,593 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 02:10:37,605 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:10:37,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:37,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:37,606 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:10:37,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-12 02:10:37,612 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_#t~nondet29#1, main_#t~ret32#1, main_#t~nondet31#1, main_#t~nondet28#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 5#L732-3true [2023-11-12 02:10:37,613 INFO L750 eck$LassoCheckResult]: Loop: 5#L732-3true havoc main_#t~nondet28#1; 41#L729-1true assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1; 18#L730-3true assume !true; 32#L732-2true assume !true; 5#L732-3true [2023-11-12 02:10:37,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:37,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2023-11-12 02:10:37,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303900469] [2023-11-12 02:10:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:37,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:37,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1424112, now seen corresponding path program 1 times [2023-11-12 02:10:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:37,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646394117] [2023-11-12 02:10:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:37,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:37,789 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 02:10:37,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:37,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646394117] [2023-11-12 02:10:37,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646394117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:37,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:37,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660166682] [2023-11-12 02:10:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:37,797 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-12 02:10:37,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:10:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:10:37,833 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 02:10:37,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:10:37,845 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2023-11-12 02:10:37,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 72 transitions. [2023-11-12 02:10:37,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:10:37,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 49 states and 68 transitions. [2023-11-12 02:10:37,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2023-11-12 02:10:37,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-12 02:10:37,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 68 transitions. [2023-11-12 02:10:37,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:37,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:10:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 68 transitions. [2023-11-12 02:10:37,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 02:10:37,886 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 02:10:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2023-11-12 02:10:37,888 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:10:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:10:37,893 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 68 transitions. [2023-11-12 02:10:37,893 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:10:37,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 68 transitions. [2023-11-12 02:10:37,894 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-12 02:10:37,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:10:37,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:10:37,895 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:10:37,895 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:10:37,895 INFO L748 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_#t~nondet29#1, main_#t~ret32#1, main_#t~nondet31#1, main_#t~nondet28#1, main_#t~nondet33#1, main_#t~mem34#1.base, main_#t~mem34#1.offset, main_#t~mem35#1.base, main_#t~mem35#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~1#1.base, main_~cursor~1#1.offset; 118#L732-3 [2023-11-12 02:10:37,896 INFO L750 eck$LassoCheckResult]: Loop: 118#L732-3 havoc main_#t~nondet28#1; 119#L729-1 assume !!(0 != main_#t~nondet28#1);havoc main_#t~nondet28#1; 139#L730-3 havoc main_#t~nondet29#1; 140#L730-1 assume !(0 != main_#t~nondet29#1);havoc main_#t~nondet29#1; 135#L732-2 havoc main_#t~nondet31#1; 141#L732 assume !(0 != main_#t~nondet31#1);havoc main_#t~nondet31#1; 118#L732-3 [2023-11-12 02:10:37,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:37,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2023-11-12 02:10:37,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:37,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284450982] [2023-11-12 02:10:37,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:37,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:37,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1365770348, now seen corresponding path program 1 times [2023-11-12 02:10:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609561778] [2023-11-12 02:10:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:37,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1651158066, now seen corresponding path program 1 times [2023-11-12 02:10:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:37,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130308243] [2023-11-12 02:10:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:37,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:10:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:38,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:10:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:10:38,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:10:38 BoogieIcfgContainer [2023-11-12 02:10:38,270 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:10:38,271 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:10:38,271 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:10:38,272 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:10:38,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:10:37" (3/4) ... [2023-11-12 02:10:38,273 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:10:38,315 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:10:38,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:10:38,316 INFO L158 Benchmark]: Toolchain (without parser) took 2438.13ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 113.3MB in the end (delta: -4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:10:38,316 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:10:38,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.31ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 87.2MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:38,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.24ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 84.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:38,318 INFO L158 Benchmark]: Boogie Preprocessor took 73.97ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:38,318 INFO L158 Benchmark]: RCFGBuilder took 767.83ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 106.8MB in the end (delta: -24.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:10:38,319 INFO L158 Benchmark]: BuchiAutomizer took 794.47ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 115.4MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:10:38,319 INFO L158 Benchmark]: Witness Printer took 44.33ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:10:38,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.31ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 87.2MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.24ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 84.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.97ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 767.83ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 106.8MB in the end (delta: -24.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 794.47ms. Allocated memory is still 155.2MB. Free memory was 106.5MB in the beginning and 115.4MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.33ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 113.3MB in the end (delta: 2.1MB). 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 49 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 729]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L728] static list_t list; VAL [list={3:0}] Loop: [L729] COND TRUE __VERIFIER_nondet_int() [L730] COND FALSE !(__VERIFIER_nondet_int()) [L732] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 729]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L728] static list_t list; VAL [list={3:0}] Loop: [L729] COND TRUE __VERIFIER_nondet_int() [L730] COND FALSE !(__VERIFIER_nondet_int()) [L732] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-12 02:10:38,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3c11ce-ac0a-4ec8-9d69-ab2596b79993/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)