./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/jain_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/jain_2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:22:04,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:22:04,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:22:04,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:22:04,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:22:04,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:22:04,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:22:04,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:22:04,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:22:04,416 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:22:04,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:22:04,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:22:04,418 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:22:04,420 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:22:04,421 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:22:04,421 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:22:04,422 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:22:04,423 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:22:04,423 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:22:04,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:22:04,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:22:04,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:22:04,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:22:04,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:22:04,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:22:04,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:22:04,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:22:04,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:22:04,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:22:04,429 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:22:04,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:22:04,431 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:22:04,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:22:04,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:22:04,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:22:04,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:22:04,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:22:04,434 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:22:04,434 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_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 [2023-11-21 22:22:04,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:22:04,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:22:04,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:22:04,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:22:04,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:22:04,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/bitvector/jain_2-1.c [2023-11-21 22:22:07,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:22:08,063 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:22:08,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/sv-benchmarks/c/bitvector/jain_2-1.c [2023-11-21 22:22:08,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/data/16e32d8d2/0015d5e62cd14a8cab8ce603bfc5fb52/FLAG0ff5d533c [2023-11-21 22:22:08,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/data/16e32d8d2/0015d5e62cd14a8cab8ce603bfc5fb52 [2023-11-21 22:22:08,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:22:08,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:22:08,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:08,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:22:08,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:22:08,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506195ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08, skipping insertion in model container [2023-11-21 22:22:08,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:22:08,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:08,321 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:22:08,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:22:08,352 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:22:08,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08 WrapperNode [2023-11-21 22:22:08,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:22:08,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:08,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:22:08,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:22:08,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,385 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2023-11-21 22:22:08,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:22:08,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:22:08,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:22:08,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:22:08,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,399 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,407 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:22:08,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:22:08,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:22:08,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:22:08,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:22:08,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (1/1) ... [2023-11-21 22:22:08,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:22:08,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:22:08,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:22:08,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:22:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:22:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:22:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:22:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:22:08,570 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:22:08,572 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:22:08,691 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:22:08,699 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:22:08,700 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:22:08,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:08 BoogieIcfgContainer [2023-11-21 22:22:08,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:22:08,703 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:22:08,703 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:22:08,707 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:22:08,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:22:08,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:22:08" (1/3) ... [2023-11-21 22:22:08,709 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ac25079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:22:08, skipping insertion in model container [2023-11-21 22:22:08,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:22:08,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:22:08" (2/3) ... [2023-11-21 22:22:08,710 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ac25079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:22:08, skipping insertion in model container [2023-11-21 22:22:08,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:22:08,710 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:08" (3/3) ... [2023-11-21 22:22:08,712 INFO L332 chiAutomizerObserver]: Analyzing ICFG jain_2-1.c [2023-11-21 22:22:08,764 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:22:08,764 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:22:08,764 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:22:08,764 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:22:08,765 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:22:08,765 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:22:08,765 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:22:08,765 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:22:08,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-21 22:22:08,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:22:08,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:22:08,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:22:08,790 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:22:08,791 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:22:08,791 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:22:08,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-21 22:22:08,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:22:08,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:22:08,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:22:08,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:22:08,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:22:08,801 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := 1;main_~y~0#1 := 1; 9#L27-2true [2023-11-21 22:22:08,802 INFO L750 eck$LassoCheckResult]: Loop: 9#L27-2true assume !false;havoc main_#t~nondet4#1;main_~x~0#1 := main_~x~0#1 + 2 * main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 + 2 * main_#t~nondet5#1;havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 != (main_~x~0#1 + main_~y~0#1) % 4294967296 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 6#L15true assume !(0 == __VERIFIER_assert_~cond#1); 11#L15-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 9#L27-2true [2023-11-21 22:22:08,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:22:08,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:08,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056604547] [2023-11-21 22:22:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:08,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:09,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash 41005, now seen corresponding path program 1 times [2023-11-21 22:22:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:09,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797609821] [2023-11-21 22:22:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:09,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:09,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-21 22:22:09,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:09,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870220728] [2023-11-21 22:22:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:22:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:22:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:22:09,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:22:09 BoogieIcfgContainer [2023-11-21 22:22:09,502 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:22:09,503 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:22:09,503 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:22:09,503 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:22:09,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:22:08" (3/4) ... [2023-11-21 22:22:09,505 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:22:09,567 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:22:09,567 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:22:09,569 INFO L158 Benchmark]: Toolchain (without parser) took 1470.56ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 87.7MB in the beginning and 109.9MB in the end (delta: -22.1MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,570 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:09,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.25ms. Allocated memory is still 134.2MB. Free memory was 87.7MB in the beginning and 77.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.94ms. Allocated memory is still 134.2MB. Free memory was 77.6MB in the beginning and 76.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,579 INFO L158 Benchmark]: Boogie Preprocessor took 30.94ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 74.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,580 INFO L158 Benchmark]: RCFGBuilder took 283.31ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 74.5MB in the beginning and 141.3MB in the end (delta: -66.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,581 INFO L158 Benchmark]: BuchiAutomizer took 799.60ms. Allocated memory is still 172.0MB. Free memory was 141.3MB in the beginning and 110.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 22:22:09,582 INFO L158 Benchmark]: Witness Printer took 64.97ms. Allocated memory is still 172.0MB. Free memory was 110.9MB in the beginning and 109.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:22:09,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.25ms. Allocated memory is still 134.2MB. Free memory was 87.7MB in the beginning and 77.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.94ms. Allocated memory is still 134.2MB. Free memory was 77.6MB in the beginning and 76.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.94ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 74.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.31ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 74.5MB in the beginning and 141.3MB in the end (delta: -66.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 799.60ms. Allocated memory is still 172.0MB. Free memory was 141.3MB in the beginning and 110.9MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 64.97ms. Allocated memory is still 172.0MB. Free memory was 110.9MB in the beginning and 109.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L22] unsigned int x,y; [L24] x = 1U [L25] y = 1U VAL [x=1, y=1] Loop: [L27] COND TRUE 1 [L29] x = x +2U*__VERIFIER_nondet_uint() [L30] y = y +2U*__VERIFIER_nondet_uint() [L33] CALL __VERIFIER_assert(x+y!=1U) [L15] COND FALSE !(!(cond)) [L33] RET __VERIFIER_assert(x+y!=1U) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] unsigned int x,y; [L24] x = 1U [L25] y = 1U VAL [x=1, y=1] Loop: [L27] COND TRUE 1 [L29] x = x +2U*__VERIFIER_nondet_uint() [L30] y = y +2U*__VERIFIER_nondet_uint() [L33] CALL __VERIFIER_assert(x+y!=1U) [L15] COND FALSE !(!(cond)) [L33] RET __VERIFIER_assert(x+y!=1U) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:22:09,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb502ec1-0659-48b3-91ae-562eb197356a/bin/uautomizer-verify-bycVGegfSx/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)