./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd --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 ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:37,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:37,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 15:14:37,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:37,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:37,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:37,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:37,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:37,249 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:37,249 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:37,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:37,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:37,251 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:37,251 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:14:37,251 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:14:37,252 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:14:37,253 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:14:37,253 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:14:37,253 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:14:37,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:37,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:37,255 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:14:37,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:37,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:37,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:37,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:37,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:14:37,256 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:14:37,256 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd 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 -> ee63462f1ec886f4aa9c5663162640144e173530e57636655ca95f3d6ab0ae72 [2024-11-13 15:14:37,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:37,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:37,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:37,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:37,574 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:37,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loop-lit/mine2017-ex4.8.i Unable to find full path for "g++" [2024-11-13 15:14:39,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:39,736 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:39,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/sv-benchmarks/c/loop-lit/mine2017-ex4.8.i [2024-11-13 15:14:39,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/data/dba51ada5/99b11969bb314249bc3007d586b3f1f8/FLAGb6874ce8b [2024-11-13 15:14:39,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/data/dba51ada5/99b11969bb314249bc3007d586b3f1f8 [2024-11-13 15:14:39,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:39,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:39,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:39,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:39,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:39,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:39" (1/1) ... [2024-11-13 15:14:39,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3683437e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:39, skipping insertion in model container [2024-11-13 15:14:39,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:39" (1/1) ... [2024-11-13 15:14:39,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:39,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:39,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:40,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:40,021 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:40,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40 WrapperNode [2024-11-13 15:14:40,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:40,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:40,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:40,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:40,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,058 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 36 [2024-11-13 15:14:40,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:40,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:40,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:40,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:40,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,083 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:14:40,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:40,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:40,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:40,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:40,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (1/1) ... [2024-11-13 15:14:40,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:14:40,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:40,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:40,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:40,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:14:40,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:40,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:40,249 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:40,383 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:40,383 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:40,395 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:40,395 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:14:40,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:40 BoogieIcfgContainer [2024-11-13 15:14:40,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:40,397 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:14:40,397 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:14:40,401 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:14:40,402 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:14:40,403 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:14:39" (1/3) ... [2024-11-13 15:14:40,404 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cadd94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:14:40, skipping insertion in model container [2024-11-13 15:14:40,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:14:40,404 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:40" (2/3) ... [2024-11-13 15:14:40,405 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cadd94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:14:40, skipping insertion in model container [2024-11-13 15:14:40,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:14:40,405 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:40" (3/3) ... [2024-11-13 15:14:40,407 INFO L333 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.8.i [2024-11-13 15:14:40,469 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:14:40,469 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:14:40,470 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:14:40,470 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:14:40,470 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:14:40,470 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:14:40,471 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:14:40,471 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:14:40,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:40,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-13 15:14:40,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:14:40,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:14:40,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:14:40,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:40,502 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:14:40,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:40,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-13 15:14:40,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:14:40,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:14:40,506 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:14:40,506 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:40,513 INFO L745 eck$LassoCheckResult]: Stem: 14#$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(22, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 13#L20-2true [2024-11-13 15:14:40,513 INFO L747 eck$LassoCheckResult]: Loop: 13#L20-2true havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 15#L17-1true assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L13true assume !(0 == __VERIFIER_assert_~cond#1); 5#L13-3true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L13-4true assume !(0 == __VERIFIER_assert_~cond#1); 9#L13-7true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 17#L20true assume !(0 == main_~v~0#1); 13#L20-2true [2024-11-13 15:14:40,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:40,522 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 15:14:40,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:40,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459358863] [2024-11-13 15:14:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:40,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:40,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:40,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:40,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:40,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1183248346, now seen corresponding path program 1 times [2024-11-13 15:14:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453597632] [2024-11-13 15:14:40,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:40,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:40,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:40,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:40,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:40,718 INFO L85 PathProgramCache]: Analyzing trace with hash 363048484, now seen corresponding path program 1 times [2024-11-13 15:14:40,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:40,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460772425] [2024-11-13 15:14:40,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:40,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:40,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:14:40,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460772425] [2024-11-13 15:14:40,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460772425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:40,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:40,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:14:40,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341492338] [2024-11-13 15:14:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:41,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:14:41,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:14:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:14:41,045 INFO L87 Difference]: Start difference. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2024-11-13 15:14:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:41,083 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-11-13 15:14:41,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 32 transitions. [2024-11-13 15:14:41,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:14:41,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 16 states and 17 transitions. [2024-11-13 15:14:41,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-13 15:14:41,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-13 15:14:41,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2024-11-13 15:14:41,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 15:14:41,097 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-13 15:14:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2024-11-13 15:14:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-13 15:14:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.0625) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-11-13 15:14:41,125 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-13 15:14:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:14:41,129 INFO L424 stractBuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-13 15:14:41,129 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:14:41,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 17 transitions. [2024-11-13 15:14:41,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 15:14:41,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:14:41,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:14:41,134 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:41,134 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:41,135 INFO L745 eck$LassoCheckResult]: Stem: 67#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2); 68#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_~v~0#1;main_~v~0#1 := 0; 69#L20-2 havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 75#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 74#L13 assume !(0 == __VERIFIER_assert_~cond#1); 73#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 72#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 71#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 70#L20 assume 0 == main_~v~0#1;main_~v~0#1 := 1; 64#L20-2 [2024-11-13 15:14:41,135 INFO L747 eck$LassoCheckResult]: Loop: 64#L20-2 havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1; 65#L17-1 assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~v~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 62#L13 assume !(0 == __VERIFIER_assert_~cond#1); 63#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~v~0#1 <= 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 66#L13-4 assume !(0 == __VERIFIER_assert_~cond#1); 60#L13-7 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 61#L20 assume !(0 == main_~v~0#1); 64#L20-2 [2024-11-13 15:14:41,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:41,135 INFO L85 PathProgramCache]: Analyzing trace with hash 363048482, now seen corresponding path program 1 times [2024-11-13 15:14:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:41,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496875864] [2024-11-13 15:14:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:41,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:41,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:41,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1183248346, now seen corresponding path program 2 times [2024-11-13 15:14:41,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:41,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922460866] [2024-11-13 15:14:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:41,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:41,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash 117205733, now seen corresponding path program 1 times [2024-11-13 15:14:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383327055] [2024-11-13 15:14:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:41,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:14:41 BoogieIcfgContainer [2024-11-13 15:14:41,723 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:14:41,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:14:41,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:14:41,723 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:14:41,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:40" (3/4) ... [2024-11-13 15:14:41,726 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:14:41,755 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:14:41,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:14:41,756 INFO L158 Benchmark]: Toolchain (without parser) took 1978.10ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 70.8MB in the end (delta: 21.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-13 15:14:41,756 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:41,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.84ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:14:41,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.11ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:41,757 INFO L158 Benchmark]: Boogie Preprocessor took 43.26ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:41,758 INFO L158 Benchmark]: RCFGBuilder took 291.78ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 71.0MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:14:41,758 INFO L158 Benchmark]: BuchiAutomizer took 1326.04ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 72.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:41,758 INFO L158 Benchmark]: Witness Printer took 32.20ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:41,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.84ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.11ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.26ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 291.78ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 71.0MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1326.04ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 72.8MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.20ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 70.8MB in the end (delta: 2.0MB). 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. 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: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int v = 0; VAL [v=0] [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND TRUE v == 0 [L21] v = 1 VAL [v=1] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= v) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= v) [L19] CALL __VERIFIER_assert(v <= 1) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(v <= 1) [L20] COND FALSE !(v == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:14:41,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28327f8-6359-422c-b4fd-b921360b57af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)