./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i --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_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/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_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/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_3f1744c3-e08f-4221-a592-50620114f019/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 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:53:06,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:53:06,630 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 04:53:06,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:53:06,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:53:06,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:53:06,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:53:06,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:53:06,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:53:06,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:53:06,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:53:06,667 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:53:06,667 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:53:06,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:53:06,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:53:06,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:53:06,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:53:06,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:53:06,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:53:06,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:53:06,672 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:53:06,672 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:53:06,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:53:06,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:53:06,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:53:06,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:53:06,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:53:06,673 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:53:06,673 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_3f1744c3-e08f-4221-a592-50620114f019/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 -> 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 [2024-11-28 04:53:07,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:53:07,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:53:07,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:53:07,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:53:07,031 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:53:07,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-11-28 04:53:10,056 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/data/b423296ae/f3f58b7c360c459e94ae0012b393ab74/FLAG8edcc468c [2024-11-28 04:53:10,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:53:10,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-11-28 04:53:10,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/data/b423296ae/f3f58b7c360c459e94ae0012b393ab74/FLAG8edcc468c [2024-11-28 04:53:10,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/data/b423296ae/f3f58b7c360c459e94ae0012b393ab74 [2024-11-28 04:53:10,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:53:10,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:53:10,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:10,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:53:10,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:53:10,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1543df44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10, skipping insertion in model container [2024-11-28 04:53:10,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:53:10,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:10,574 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:53:10,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:53:10,613 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:53:10,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10 WrapperNode [2024-11-28 04:53:10,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:53:10,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:10,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:53:10,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:53:10,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,658 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 44 [2024-11-28 04:53:10,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:53:10,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:53:10,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:53:10,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:53:10,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,688 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 04:53:10,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,691 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:53:10,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:53:10,703 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:53:10,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:53:10,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (1/1) ... [2024-11-28 04:53:10,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:53:10,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:53:10,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:53:10,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:53:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:53:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:53:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:53:10,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:53:10,837 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:53:10,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:53:11,031 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 04:53:11,032 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:53:11,047 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:53:11,048 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:53:11,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:11 BoogieIcfgContainer [2024-11-28 04:53:11,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:53:11,049 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:53:11,049 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:53:11,060 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:53:11,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:53:11,061 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:53:10" (1/3) ... [2024-11-28 04:53:11,063 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45e9e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:53:11, skipping insertion in model container [2024-11-28 04:53:11,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:53:11,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:53:10" (2/3) ... [2024-11-28 04:53:11,064 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45e9e0f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:53:11, skipping insertion in model container [2024-11-28 04:53:11,064 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:53:11,064 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:11" (3/3) ... [2024-11-28 04:53:11,066 INFO L363 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.7.i [2024-11-28 04:53:11,145 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:53:11,146 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:53:11,146 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:53:11,146 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:53:11,146 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:53:11,147 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:53:11,148 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:53:11,148 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:53:11,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 04:53:11,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-11-28 04:53:11,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:53:11,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:53:11,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:53:11,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:11,185 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:53:11,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.4) internal successors, (28), 20 states have internal predecessors, (28), 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 04:53:11,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-11-28 04:53:11,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:53:11,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:53:11,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:53:11,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:11,202 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_~x~0#1;main_~x~0#1 := 0;" [2024-11-28 04:53:11,202 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1;" "assume 0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296);havoc main_#t~nondet1#1;" "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;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~x~0#1 <= 40 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;havoc main_#t~nondet2#1;assume 0 == main_#t~nondet2#1 || 1 == main_#t~nondet2#1;" "assume !(0 == (if main_#t~nondet2#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet2#1 % 256 % 4294967296 else main_#t~nondet2#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet2#1;" [2024-11-28 04:53:11,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 04:53:11,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:53:11,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637046925] [2024-11-28 04:53:11,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,333 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:53:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:53:11,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash -144907765, now seen corresponding path program 1 times [2024-11-28 04:53:11,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:53:11,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346875882] [2024-11-28 04:53:11,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:11,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,425 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:53:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:53:11,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash 545653709, now seen corresponding path program 1 times [2024-11-28 04:53:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:53:11,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480920213] [2024-11-28 04:53:11,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:53:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,489 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:53:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:53:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:53:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:53:11,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:53:11 BoogieIcfgContainer [2024-11-28 04:53:11,924 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:53:11,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:53:11,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:53:11,925 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:53:11,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:53:11" (3/4) ... [2024-11-28 04:53:11,928 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 04:53:11,967 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:53:11,968 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:53:11,973 INFO L158 Benchmark]: Toolchain (without parser) took 1623.58ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 41.8MB in the end (delta: 51.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 04:53:11,974 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:53:11,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.39ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:11,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.47ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:53:11,977 INFO L158 Benchmark]: Boogie Preprocessor took 43.86ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:11,977 INFO L158 Benchmark]: RCFGBuilder took 344.87ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 70.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:53:11,979 INFO L158 Benchmark]: BuchiAutomizer took 874.62ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 43.6MB in the end (delta: 26.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:53:11,980 INFO L158 Benchmark]: Witness Printer took 43.34ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 41.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:53:11,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.39ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.47ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.86ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 344.87ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 70.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 874.62ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 43.6MB in the end (delta: 26.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 43.34ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 41.8MB in the end (delta: 1.7MB). 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 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:53:12,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f1744c3-e08f-4221-a592-50620114f019/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)