./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 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_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX --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 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:29:58,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:29:58,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-08 18:29:58,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:29:58,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:29:58,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:29:58,433 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:29:58,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:29:58,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:29:58,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:29:58,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:29:58,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:29:58,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:29:58,439 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 18:29:58,442 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 18:29:58,442 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 18:29:58,443 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 18:29:58,443 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 18:29:58,444 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 18:29:58,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:29:58,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 18:29:58,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:29:58,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:29:58,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:29:58,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:29:58,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 18:29:58,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 18:29:58,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 18:29:58,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:29:58,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:29:58,455 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:29:58,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:29:58,457 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 18:29:58,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:29:58,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:29:58,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:29:58,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:29:58,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:29:58,459 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 18:29:58,460 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_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2024-11-08 18:29:58,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:29:58,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:29:58,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:29:58,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:29:58,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:29:58,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/loops/while_infinite_loop_2.c Unable to find full path for "g++" [2024-11-08 18:30:01,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:30:01,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:30:01,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/sv-benchmarks/c/loops/while_infinite_loop_2.c [2024-11-08 18:30:01,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/data/63da69938/2ddde86e70f84f85b6efd5a0636df220/FLAGd5aa018d8 [2024-11-08 18:30:02,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/data/63da69938/2ddde86e70f84f85b6efd5a0636df220 [2024-11-08 18:30:02,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:30:02,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:30:02,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:02,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:30:02,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:30:02,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02, skipping insertion in model container [2024-11-08 18:30:02,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:30:02,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:02,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:30:02,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:30:02,415 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:30:02,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02 WrapperNode [2024-11-08 18:30:02,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:30:02,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:02,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:30:02,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:30:02,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,458 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 29 [2024-11-08 18:30:02,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:30:02,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:30:02,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:30:02,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:30:02,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,480 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,503 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:30:02,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:30:02,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:30:02,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:30:02,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:30:02,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (1/1) ... [2024-11-08 18:30:02,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 18:30:02,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:02,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 18:30:02,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 18:30:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:30:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:30:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:30:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:30:02,717 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:30:02,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:30:02,887 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-08 18:30:02,888 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:30:02,912 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:30:02,913 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:30:02,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:02 BoogieIcfgContainer [2024-11-08 18:30:02,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:30:02,916 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 18:30:02,916 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 18:30:02,925 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 18:30:02,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:30:02,926 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:30:02" (1/3) ... [2024-11-08 18:30:02,928 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36be7e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:30:02, skipping insertion in model container [2024-11-08 18:30:02,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:30:02,928 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:30:02" (2/3) ... [2024-11-08 18:30:02,929 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36be7e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:30:02, skipping insertion in model container [2024-11-08 18:30:02,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 18:30:02,929 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:02" (3/3) ... [2024-11-08 18:30:02,931 INFO L332 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2024-11-08 18:30:02,995 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 18:30:02,995 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 18:30:02,995 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 18:30:02,995 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 18:30:02,996 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 18:30:02,996 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 18:30:02,996 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 18:30:02,996 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 18:30:03,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-08 18:30:03,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 18:30:03,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:30:03,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:30:03,030 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-08 18:30:03,030 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:30:03,031 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 18:30:03,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-08 18:30:03,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 18:30:03,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 18:30:03,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 18:30:03,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-08 18:30:03,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 18:30:03,044 INFO L745 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0; 15#L14-2true [2024-11-08 18:30:03,045 INFO L747 eck$LassoCheckResult]: Loop: 15#L14-2true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 10#L6true assume !(0 == __VERIFIER_assert_~cond#1); 3#L6-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 15#L14-2true [2024-11-08 18:30:03,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-08 18:30:03,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:03,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222126195] [2024-11-08 18:30:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:03,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:30:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:30:03,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:03,268 INFO L85 PathProgramCache]: Analyzing trace with hash 40012, now seen corresponding path program 1 times [2024-11-08 18:30:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146713225] [2024-11-08 18:30:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:30:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:30:03,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:03,333 INFO L85 PathProgramCache]: Analyzing trace with hash 28698954, now seen corresponding path program 1 times [2024-11-08 18:30:03,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:03,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857975760] [2024-11-08 18:30:03,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:30:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:30:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:30:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:30:03,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:30:03 BoogieIcfgContainer [2024-11-08 18:30:03,776 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 18:30:03,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:30:03,778 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:30:03,778 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:30:03,779 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:02" (3/4) ... [2024-11-08 18:30:03,785 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-08 18:30:03,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:30:03,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:30:03,830 INFO L158 Benchmark]: Toolchain (without parser) took 1817.47ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 100.9MB in the beginning and 146.1MB in the end (delta: -45.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-08 18:30:03,831 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:30:03,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.20ms. Allocated memory is still 134.2MB. Free memory was 100.5MB in the beginning and 88.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:30:03,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.94ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:30:03,833 INFO L158 Benchmark]: Boogie Preprocessor took 70.14ms. Allocated memory is still 134.2MB. Free memory was 87.2MB in the beginning and 85.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:30:03,836 INFO L158 Benchmark]: RCFGBuilder took 382.67ms. Allocated memory is still 134.2MB. Free memory was 85.6MB in the beginning and 76.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 18:30:03,838 INFO L158 Benchmark]: BuchiAutomizer took 860.60ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 76.7MB in the beginning and 148.2MB in the end (delta: -71.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:30:03,839 INFO L158 Benchmark]: Witness Printer took 51.29ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:30:03,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.20ms. Allocated memory is still 134.2MB. Free memory was 100.5MB in the beginning and 88.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.94ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 87.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.14ms. Allocated memory is still 134.2MB. Free memory was 87.2MB in the beginning and 85.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.67ms. Allocated memory is still 134.2MB. Free memory was 85.6MB in the beginning and 76.7MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 860.60ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 76.7MB in the beginning and 148.2MB in the end (delta: -71.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.29ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 146.1MB 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x=0; VAL [x=0] Loop: [L14] COND TRUE 1 [L16] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L16] RET __VERIFIER_assert(x==0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; VAL [x=0] Loop: [L14] COND TRUE 1 [L16] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L16] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-08 18:30:03,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5faae3b3-d6cc-4c38-8142-4c7207ff5233/bin/uautomizer-verify-jihMAELWvX/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)