./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/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_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/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 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:32:21,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:32:21,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 20:32:21,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:32:21,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:32:21,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:32:21,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:32:21,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:32:21,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:32:21,576 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:32:21,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:32:21,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:32:21,578 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:32:21,579 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:32:21,579 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:32:21,579 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:32:21,580 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:32:21,580 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:32:21,580 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:32:21,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:32:21,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:32:21,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:32:21,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:32:21,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:32:21,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:32:21,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:32:21,582 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:32:21,582 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_198f5323-565f-46ab-842e-c74af162c272/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2024-11-27 20:32:21,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:32:21,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:32:21,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:32:21,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:32:21,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:32:21,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-11-27 20:32:25,379 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/data/0ca64a3f1/73bc4f1826cf4e5e92d1bf2cd98d5582/FLAG98fad7df0 [2024-11-27 20:32:25,687 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:32:25,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-11-27 20:32:25,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/data/0ca64a3f1/73bc4f1826cf4e5e92d1bf2cd98d5582/FLAG98fad7df0 [2024-11-27 20:32:25,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/data/0ca64a3f1/73bc4f1826cf4e5e92d1bf2cd98d5582 [2024-11-27 20:32:25,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:32:25,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:32:25,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:25,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:32:25,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:32:25,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:25" (1/1) ... [2024-11-27 20:32:25,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4067ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:25, skipping insertion in model container [2024-11-27 20:32:25,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:25" (1/1) ... [2024-11-27 20:32:25,774 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:32:25,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:25,970 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:32:25,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:26,017 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:32:26,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26 WrapperNode [2024-11-27 20:32:26,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:26,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:26,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:32:26,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:32:26,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,058 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-11-27 20:32:26,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:26,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:32:26,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:32:26,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:32:26,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,074 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,090 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-11-27 20:32:26,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:32:26,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:32:26,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:32:26,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:32:26,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (1/1) ... [2024-11-27 20:32:26,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:32:26,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:26,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:32:26,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:32:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:32:26,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:32:26,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:32:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:32:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:32:26,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:32:26,288 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:32:26,292 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:32:26,430 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-11-27 20:32:26,430 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:32:26,444 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:32:26,445 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:32:26,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:26 BoogieIcfgContainer [2024-11-27 20:32:26,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:32:26,446 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:32:26,447 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:32:26,455 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:32:26,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:32:26,456 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:32:25" (1/3) ... [2024-11-27 20:32:26,457 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ccb876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:32:26, skipping insertion in model container [2024-11-27 20:32:26,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:32:26,458 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:26" (2/3) ... [2024-11-27 20:32:26,459 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ccb876d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:32:26, skipping insertion in model container [2024-11-27 20:32:26,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:32:26,459 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:26" (3/3) ... [2024-11-27 20:32:26,461 INFO L363 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2024-11-27 20:32:26,517 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:32:26,517 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:32:26,517 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:32:26,517 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:32:26,517 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:32:26,517 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:32:26,518 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:32:26,518 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:32:26,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-11-27 20:32:26,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:32:26,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:32:26,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:32:26,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:32:26,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:32:26,544 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:32:26,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-11-27 20:32:26,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-27 20:32:26,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:32:26,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:32:26,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:32:26,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:32:26,555 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem1#1, main_#t~mem2#1, main_#t~nondet3#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int#0(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1;" [2024-11-27 20:32:26,555 INFO L749 eck$LassoCheckResult]: Loop: "call main_#t~mem1#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);" "assume main_#t~mem1#1 >= 0;havoc main_#t~mem1#1;" "call main_#t~mem2#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int#0(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;havoc main_#t~nondet3#1;call write~int#0(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1;" [2024-11-27 20:32:26,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:26,561 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 20:32:26,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:32:26,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752486744] [2024-11-27 20:32:26,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:26,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,706 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:32:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:32:26,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash 35849, now seen corresponding path program 1 times [2024-11-27 20:32:26,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:32:26,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136606392] [2024-11-27 20:32:26,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,773 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:32:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:32:26,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:26,794 INFO L85 PathProgramCache]: Analyzing trace with hash 28694791, now seen corresponding path program 1 times [2024-11-27 20:32:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:32:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503532820] [2024-11-27 20:32:26,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:26,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,832 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:32:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:26,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:32:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:27,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:32:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:32:27,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:32:27 BoogieIcfgContainer [2024-11-27 20:32:27,300 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:32:27,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:32:27,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:32:27,302 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:32:27,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:26" (3/4) ... [2024-11-27 20:32:27,305 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:32:27,357 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:32:27,357 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:32:27,362 INFO L158 Benchmark]: Toolchain (without parser) took 1610.88ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 69.5MB in the end (delta: 49.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-27 20:32:27,362 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:32:27,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.52ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 108.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:32:27,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.33ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:32:27,364 INFO L158 Benchmark]: Boogie Preprocessor took 51.74ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:32:27,364 INFO L158 Benchmark]: RCFGBuilder took 332.40ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 96.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:32:27,364 INFO L158 Benchmark]: BuchiAutomizer took 854.08ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 71.3MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:32:27,365 INFO L158 Benchmark]: Witness Printer took 56.41ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 69.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:32:27,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.52ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 108.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.33ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.74ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.40ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 96.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 854.08ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 71.3MB in the end (delta: 25.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 56.41ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 69.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:32:27,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_198f5323-565f-46ab-842e-c74af162c272/bin/uautomizer-verify-aQ6SnzHsRB/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)