./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 e04fb08f 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_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:19:56,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:19:56,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:19:56,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:19:56,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:19:56,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:19:56,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:19:56,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:19:56,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:19:56,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:19:56,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:19:56,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:19:56,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:19:56,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:19:56,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:19:56,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:19:56,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:19:56,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:19:56,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:19:56,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:19:56,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:19:56,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:19:56,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:19:56,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:19:56,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:19:56,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:19:56,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:19:56,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:19:56,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:19:56,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:19:56,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:19:56,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:19:56,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:19:56,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:19:56,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:19:56,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:19:56,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:19:56,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:19:56,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:19:56,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:19:56,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:19:56,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:19:56,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:19:56,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:19:56,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:19:56,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:19:56,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:19:56,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:19:56,554 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:19:56,554 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:19:56,554 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:19:56,555 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:19:56,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:19:56,557 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:19:56,557 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:19:56,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:19:56,558 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:19:56,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:19:56,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:19:56,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:19:56,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:19:56,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:19:56,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:19:56,560 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:19:56,560 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:19:56,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:19:56,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:19:56,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:19:56,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:19:56,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:19:56,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:19:56,565 INFO L138 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_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2022-11-16 11:19:56,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:19:56,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:19:56,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:19:56,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:19:56,948 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:19:56,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2022-11-16 11:19:57,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/data/e30a5eca7/b9c214ee49494206a334ca4844fd4986/FLAG696ec1c4c [2022-11-16 11:19:57,505 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:19:57,507 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2022-11-16 11:19:57,512 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/data/e30a5eca7/b9c214ee49494206a334ca4844fd4986/FLAG696ec1c4c [2022-11-16 11:19:57,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/data/e30a5eca7/b9c214ee49494206a334ca4844fd4986 [2022-11-16 11:19:57,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:19:57,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:19:57,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:19:57,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:19:57,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:19:57,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:19:57" (1/1) ... [2022-11-16 11:19:57,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fab230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:57, skipping insertion in model container [2022-11-16 11:19:57,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:19:57" (1/1) ... [2022-11-16 11:19:57,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:19:57,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:19:58,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:19:58,193 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:19:58,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:19:58,284 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:19:58,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58 WrapperNode [2022-11-16 11:19:58,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:19:58,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:19:58,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:19:58,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:19:58,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,335 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-11-16 11:19:58,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:19:58,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:19:58,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:19:58,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:19:58,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:19:58,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:19:58,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:19:58,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:19:58,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (1/1) ... [2022-11-16 11:19:58,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:19:58,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:19:58,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:19:58,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:19:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:19:58,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:19:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:19:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:19:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:19:58,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:19:58,591 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:19:58,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:19:58,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:19:58,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:19:58,693 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:19:58,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:58 BoogieIcfgContainer [2022-11-16 11:19:58,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:19:58,697 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:19:58,698 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:19:58,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:19:58,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:58,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:19:57" (1/3) ... [2022-11-16 11:19:58,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b0b1d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:19:58, skipping insertion in model container [2022-11-16 11:19:58,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:58,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:19:58" (2/3) ... [2022-11-16 11:19:58,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b0b1d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:19:58, skipping insertion in model container [2022-11-16 11:19:58,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:19:58,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:58" (3/3) ... [2022-11-16 11:19:58,709 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2022-11-16 11:19:58,772 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:19:58,773 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:19:58,773 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:19:58,773 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:19:58,773 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:19:58,773 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:19:58,773 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:19:58,774 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:19:58,780 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) [2022-11-16 11:19:58,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:19:58,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:58,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:58,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:19:58,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:19:58,819 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:19:58,819 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) [2022-11-16 11:19:58,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:19:58,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:19:58,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:19:58,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:19:58,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:19:58,832 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;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);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 [2022-11-16 11:19:58,834 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;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 [2022-11-16 11:19:58,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:58,852 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:19:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:58,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130775778] [2022-11-16 11:19:58,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:58,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:59,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2022-11-16 11:19:59,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:59,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526777319] [2022-11-16 11:19:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:59,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:19:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-16 11:19:59,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:19:59,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890303003] [2022-11-16 11:19:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:19:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:19:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:19:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:19:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:19:59,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:19:59 BoogieIcfgContainer [2022-11-16 11:19:59,620 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:19:59,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:19:59,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:19:59,621 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:19:59,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:19:58" (3/4) ... [2022-11-16 11:19:59,637 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:19:59,694 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:19:59,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:19:59,703 INFO L158 Benchmark]: Toolchain (without parser) took 1804.27ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 52.8MB in the end (delta: 23.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 11:19:59,706 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:59,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.10ms. Allocated memory is still 121.6MB. Free memory was 75.6MB in the beginning and 95.9MB in the end (delta: -20.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:19:59,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.61ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 94.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:19:59,712 INFO L158 Benchmark]: Boogie Preprocessor took 39.44ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:59,712 INFO L158 Benchmark]: RCFGBuilder took 316.93ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 83.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:19:59,713 INFO L158 Benchmark]: BuchiAutomizer took 922.85ms. Allocated memory is still 121.6MB. Free memory was 83.8MB in the beginning and 54.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 11:19:59,714 INFO L158 Benchmark]: Witness Printer took 78.09ms. Allocated memory is still 121.6MB. Free memory was 54.5MB in the beginning and 53.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:19:59,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.10ms. Allocated memory is still 121.6MB. Free memory was 75.6MB in the beginning and 95.9MB in the end (delta: -20.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.61ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 94.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.44ms. Allocated memory is still 121.6MB. Free memory was 94.3MB in the beginning and 93.4MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.93ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 83.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 922.85ms. Allocated memory is still 121.6MB. Free memory was 83.8MB in the beginning and 54.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 78.09ms. Allocated memory is still 121.6MB. Free memory was 54.5MB in the beginning and 53.1MB in the end (delta: 1.4MB). 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 0.8s 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! [2022-11-16 11:19:59,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22074fca-fdee-47ab-99ee-e2c00e99bfe5/bin/uautomizer-tPACEb0tL8/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)