./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB --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 92296dc205042e203e49a0f508dfdcdcae7c81ca61407e6509b5b78fafc04385 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:31:36,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:31:37,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 02:31:37,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:31:37,108 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:31:37,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:31:37,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:31:37,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:31:37,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:31:37,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:31:37,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:31:37,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:31:37,164 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:31:37,164 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:31:37,164 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:31:37,164 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:31:37,164 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:31:37,165 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:31:37,165 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:31:37,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:31:37,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:31:37,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:31:37,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:31:37,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:31:37,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:31:37,168 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:31:37,168 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 92296dc205042e203e49a0f508dfdcdcae7c81ca61407e6509b5b78fafc04385 [2024-11-28 02:31:37,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:31:37,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:31:37,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:31:37,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:31:37,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:31:37,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loops/while_infinite_loop_3.c [2024-11-28 02:31:41,246 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/data/496fef5ee/88ecb7340ba74a26832acc15e94df4a3/FLAG3c7563f6f [2024-11-28 02:31:41,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:31:41,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/sv-benchmarks/c/loops/while_infinite_loop_3.c [2024-11-28 02:31:41,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/data/496fef5ee/88ecb7340ba74a26832acc15e94df4a3/FLAG3c7563f6f [2024-11-28 02:31:41,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/data/496fef5ee/88ecb7340ba74a26832acc15e94df4a3 [2024-11-28 02:31:41,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:31:41,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:31:41,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:31:41,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:31:41,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:31:41,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:31:41" (1/1) ... [2024-11-28 02:31:41,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a1997fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:41, skipping insertion in model container [2024-11-28 02:31:41,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:31:41" (1/1) ... [2024-11-28 02:31:41,748 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:31:41,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:31:41,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:31:41,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:31:42,011 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:31:42,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42 WrapperNode [2024-11-28 02:31:42,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:31:42,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:31:42,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:31:42,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:31:42,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,052 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 38 [2024-11-28 02:31:42,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:31:42,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:31:42,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:31:42,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:31:42,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,081 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]. [2024-11-28 02:31:42,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,087 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:31:42,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:31:42,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:31:42,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:31:42,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (1/1) ... [2024-11-28 02:31:42,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:31:42,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:31:42,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:31:42,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:31:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:31:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:31:42,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:31:42,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:31:42,254 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:31:42,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:31:42,370 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 02:31:42,371 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:31:42,382 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:31:42,382 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:31:42,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:31:42 BoogieIcfgContainer [2024-11-28 02:31:42,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:31:42,384 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:31:42,384 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:31:42,391 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:31:42,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:31:42,392 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:31:41" (1/3) ... [2024-11-28 02:31:42,394 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aacc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:31:42, skipping insertion in model container [2024-11-28 02:31:42,394 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:31:42,394 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:31:42" (2/3) ... [2024-11-28 02:31:42,394 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aacc85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:31:42, skipping insertion in model container [2024-11-28 02:31:42,395 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:31:42,395 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:31:42" (3/3) ... [2024-11-28 02:31:42,396 INFO L363 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_3.c [2024-11-28 02:31:42,459 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:31:42,459 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:31:42,459 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:31:42,459 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:31:42,460 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:31:42,460 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:31:42,460 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:31:42,460 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:31:42,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2024-11-28 02:31:42,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 02:31:42,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:31:42,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:31:42,493 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:31:42,493 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-28 02:31:42,493 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:31:42,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2024-11-28 02:31:42,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 02:31:42,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:31:42,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:31:42,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:31:42,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-28 02:31:42,506 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3);~x~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" [2024-11-28 02:31:42,507 INFO L749 eck$LassoCheckResult]: Loop: "assume { :begin_inline_eval } true;" "assume !true;" "assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" [2024-11-28 02:31:42,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:31:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:31:42,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:31:42,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112692647] [2024-11-28 02:31:42,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:42,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:31:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:42,634 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:31:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:42,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:31:42,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:31:42,671 INFO L85 PathProgramCache]: Analyzing trace with hash 39349236, now seen corresponding path program 1 times [2024-11-28 02:31:42,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:31:42,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750102266] [2024-11-28 02:31:42,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:31:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:31:42,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:31:42,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750102266] [2024-11-28 02:31:42,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750102266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:31:42,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998747362] [2024-11-28 02:31:42,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:42,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:31:42,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:31:42,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:31:42,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:31:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:31:42,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:31:42,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:31:42,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:31:42,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998747362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:31:42,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:31:42,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 02:31:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061010290] [2024-11-28 02:31:42,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:31:42,847 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:31:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:31:42,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:31:42,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:31:42,891 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-11-28 02:31:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:31:42,902 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2024-11-28 02:31:42,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2024-11-28 02:31:42,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 02:31:42,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 7 transitions. [2024-11-28 02:31:42,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-28 02:31:42,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-28 02:31:42,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2024-11-28 02:31:42,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:31:42,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-11-28 02:31:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2024-11-28 02:31:42,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-28 02:31:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.0) internal successors, (7), 6 states have internal predecessors, (7), 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) [2024-11-28 02:31:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-11-28 02:31:42,956 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-11-28 02:31:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:31:42,962 INFO L425 stractBuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-11-28 02:31:42,964 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:31:42,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2024-11-28 02:31:42,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 02:31:42,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:31:42,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:31:42,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:31:42,966 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-28 02:31:42,967 INFO L747 eck$LassoCheckResult]: Stem: "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);~x~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" [2024-11-28 02:31:42,967 INFO L749 eck$LassoCheckResult]: Loop: "assume { :begin_inline_eval } true;" "~x~0 := 0;" "assume { :end_inline_eval } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == ~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" [2024-11-28 02:31:42,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:31:42,968 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 02:31:42,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:31:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259720597] [2024-11-28 02:31:42,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:42,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:31:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:42,987 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:31:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:31:43,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:31:43,003 INFO L85 PathProgramCache]: Analyzing trace with hash 39408818, now seen corresponding path program 1 times [2024-11-28 02:31:43,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:31:43,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015517372] [2024-11-28 02:31:43,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:31:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,020 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:31:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:31:43,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:31:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1810848304, now seen corresponding path program 1 times [2024-11-28 02:31:43,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:31:43,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919822461] [2024-11-28 02:31:43,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:31:43,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:31:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,042 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:31:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:31:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,462 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:31:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:31:43,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:31:43 BoogieIcfgContainer [2024-11-28 02:31:43,508 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:31:43,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:31:43,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:31:43,508 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:31:43,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:31:42" (3/4) ... [2024-11-28 02:31:43,516 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 02:31:43,558 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:31:43,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:31:43,563 INFO L158 Benchmark]: Toolchain (without parser) took 1854.51ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 38.8MB in the end (delta: 55.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:31:43,564 INFO L158 Benchmark]: CDTParser took 1.92ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:31:43,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.81ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 83.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:31:43,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.95ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 978.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:31:43,565 INFO L158 Benchmark]: Boogie Preprocessor took 51.39ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:31:43,566 INFO L158 Benchmark]: RCFGBuilder took 277.98ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:31:43,566 INFO L158 Benchmark]: BuchiAutomizer took 1123.59ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 40.4MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 02:31:43,567 INFO L158 Benchmark]: Witness Printer took 50.39ms. Allocated memory is still 117.4MB. Free memory was 40.4MB in the beginning and 38.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:31:43,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.92ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.81ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 83.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.95ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 978.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.39ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.98ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1123.59ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 40.4MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 50.39ms. Allocated memory is still 117.4MB. Free memory was 40.4MB in the beginning and 38.8MB in the end (delta: 1.6MB). 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 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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, 8 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, 8 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: 26]: 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: [L28] CALL eval() [L17] x=0 [L28] RET eval() [L29] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L29] RET __VERIFIER_assert(x==0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; VAL [x=0] Loop: [L28] CALL eval() [L17] x=0 [L28] RET eval() [L29] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L29] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:31:43,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:31:43,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a1c22e-a7b6-4e0a-ac61-4c17e785a354/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)