./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:41,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:41,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:30:41,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:41,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:41,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:41,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:41,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:41,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:41,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:41,511 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:41,512 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:30:41,512 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:30:41,513 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:30:41,513 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:30:41,514 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:30:41,514 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:30:41,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:41,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:30:41,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:41,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:41,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:30:41,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:30:41,525 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:30:41,526 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:30:41,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:30:41,527 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:30:41,527 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:41,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:41,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:41,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:41,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:41,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:30:41,541 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2023-11-12 02:30:41,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:41,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:41,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:41,877 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:41,878 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:41,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-11-12 02:30:45,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:45,276 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:45,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-11-12 02:30:45,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/data/2b45acba2/32cddd6d312b4cb8829c6b57b50bc025/FLAG9bba3ae0c [2023-11-12 02:30:45,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/data/2b45acba2/32cddd6d312b4cb8829c6b57b50bc025 [2023-11-12 02:30:45,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:45,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:45,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:45,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:45,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:45,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2163dc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45, skipping insertion in model container [2023-11-12 02:30:45,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:45,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:45,501 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:45,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:45,533 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:45,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45 WrapperNode [2023-11-12 02:30:45,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:45,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:45,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:45,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:45,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,570 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-12 02:30:45,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:45,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:45,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:45,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:45,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:45,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:45,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:45,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:45,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (1/1) ... [2023-11-12 02:30:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:30:45,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:45,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:45,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:30:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:30:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:30:45,755 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:45,756 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:45,858 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:45,864 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:45,864 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:30:45,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:45 BoogieIcfgContainer [2023-11-12 02:30:45,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:45,868 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:30:45,868 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:30:45,873 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:30:45,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:30:45,874 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:30:45" (1/3) ... [2023-11-12 02:30:45,875 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@532f6088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:30:45, skipping insertion in model container [2023-11-12 02:30:45,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:30:45,875 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:45" (2/3) ... [2023-11-12 02:30:45,876 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@532f6088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:30:45, skipping insertion in model container [2023-11-12 02:30:45,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:30:45,876 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:45" (3/3) ... [2023-11-12 02:30:45,878 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2023-11-12 02:30:45,939 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:30:45,940 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:30:45,940 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:30:45,940 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:30:45,940 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:30:45,940 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:30:45,940 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:30:45,940 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:30:45,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:45,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:30:45,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:30:45,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:30:45,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:30:45,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:30:45,970 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:30:45,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:30:45,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-12 02:30:45,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:30:45,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:30:45,972 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:30:45,972 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-12 02:30:45,980 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem2#1, main_#t~nondet3#1, main_#t~mem1#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 6#L13-3true [2023-11-12 02:30:45,980 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-3true call main_#t~mem1#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 3#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int(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(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L13-3true [2023-11-12 02:30:45,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-12 02:30:45,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:45,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695649390] [2023-11-12 02:30:45,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:45,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:30:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:30:46,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:46,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2023-11-12 02:30:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:46,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019628784] [2023-11-12 02:30:46,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:46,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:30:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:30:46,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:46,163 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-12 02:30:46,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:46,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104119366] [2023-11-12 02:30:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:30:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:30:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:30:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:30:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:30:46,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:30:46 BoogieIcfgContainer [2023-11-12 02:30:46,541 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:30:46,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:30:46,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:30:46,561 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:30:46,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:45" (3/4) ... [2023-11-12 02:30:46,563 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-12 02:30:46,612 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:30:46,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:30:46,614 INFO L158 Benchmark]: Toolchain (without parser) took 1309.89ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 100.8MB in the beginning and 163.7MB in the end (delta: -62.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:46,619 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 136.3MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:46,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.21ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 90.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:30:46,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 89.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:30:46,621 INFO L158 Benchmark]: Boogie Preprocessor took 23.36ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:46,622 INFO L158 Benchmark]: RCFGBuilder took 272.06ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 79.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:30:46,623 INFO L158 Benchmark]: BuchiAutomizer took 672.91ms. Allocated memory is still 136.3MB. Free memory was 79.1MB in the beginning and 104.3MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:30:46,626 INFO L158 Benchmark]: Witness Printer took 71.00ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 104.2MB in the beginning and 163.7MB in the end (delta: -59.4MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-11-12 02:30:46,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 136.3MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.21ms. Allocated memory is still 136.3MB. Free memory was 100.8MB in the beginning and 90.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 136.3MB. Free memory was 90.9MB in the beginning and 89.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.36ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.06ms. Allocated memory is still 136.3MB. Free memory was 88.2MB in the beginning and 79.1MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 672.91ms. Allocated memory is still 136.3MB. Free memory was 79.1MB in the beginning and 104.3MB in the end (delta: -25.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.00ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 104.2MB in the beginning and 163.7MB in the end (delta: -59.4MB). Peak memory consumption was 3.5MB. 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 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! [2023-11-12 02:30:46,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13750d6-3a08-4785-ab3a-d6d65e0400ca/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)